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If you’ve ever seen a vague error like “unknown error occurred” when uploading a PDF to ChatGPT, or had your conversation suddenly break with a “message stream” glitch, you're not alone. These issues are more common than you think—especially for users who rely on ChatGPT Pro for work, study, or collaboration. And if you’ve ever wondered, “Can you share a ChatGPT Pro account safely?”, that’s another popular (and tricky) topic. In this guide, we’ll walk through how to fix these frustrating errors and explore the best practices for safely sharing a ChatGPT Pro account
If you’ve ever tried uploading a PDF file to ChatGPT and got hit with the message “Unknown error occurred”, you're not alone. This vague and frustrating error has popped up for many users, whether they’re trying to summarise documents, extract content, or use ChatGPT for study or work purposes. So, what does this error actually mean, and more importantly, how do you fix it?
This error most commonly happens when ChatGPT has trouble reading or processing your PDF file. Based on user experiences from Reddit, Quora, and community forums, there are several known triggers. One of the most frequent causes is uploading scanned PDFs or files that contain only images rather than selectable, machine-readable text. Since ChatGPT relies on parsing actual text within the document, image-based PDFs can confuse the system and result in this “unknown error.” Another common issue is file size. Although ChatGPT supports relatively large uploads, oversized PDFs can still cause upload failures or timeout issues, especially if your internet connection is slow or unstable.
In some cases, the error may stem from security restrictions on the PDF itself. Files that are password-protected or encrypted often fail to process correctly. Additionally, browser-related problems such as outdated versions, certain extensions, or conflicting cookies can interfere with file uploads, leading to this generic error message.
Here are some proven ways to resolve this error based on community feedback and technical troubleshooting:
The “ChatGPT error in message stream” is a common issue that pops up when you're in the middle of a conversation, especially if you’re using a ChatGPT Pro shared account or running long prompts. This error usually means the connection between your browser and OpenAI's servers was interrupted or the request couldn't be processed properly.
By understanding what causes the chatgpt error in message stream, and taking a few simple steps, you can get your conversation back on track without much disruption.
After troubleshooting errors like "unknown error occurred chatgpt pdf" and "chatgpt error in message stream", many users start asking a different kind of question: can you share a ChatGPT Pro account with someone else? Whether it’s to split costs with a friend or set up access for a small team, the idea of a ChatGPT Pro shared account seems appealing. But is it actually allowed? And if you still want to do it, how can you minimise the risk?
Technically speaking, the answer is no, at least not officially. According to OpenAI’s terms of service, ChatGPT Pro account sharing is not permitted across multiple users or IP addresses. This means that if you're accessing the same account from different devices, locations, or user environments, there's always a risk that the account could be flagged or suspended.
So if you're planning to share ChatGPT Pro account access with a coworker, friend, or even as part of a resale or group-buy model, you need to understand the risks. OpenAI actively monitors login behaviour, and abnormal patterns, like frequent logins from multiple locations, could trigger security protocols or violate the user agreement.
And that's where the right tools can make a big difference. Antidetect browsers like DICloak help make sharing a ChatGPT Pro account more discreet and stable. Next, let’s talk about how to share a ChatGPT Pro account safely and what methods are being used to do it with minimal risk.
So yes, technically, sharing a ChatGPT Pro account comes with risks. But what if there were a smarter way to do it? A method that protects your account from being flagged, keeps your login safe, and lets multiple users access it without raising red flags?
If you’re serious about ChatGPT Pro account sharing, DICloak makes it possible to do it the right way — with privacy, security, and stability in mind.
Let’s take a look at how it works, and how you can use it to share a ChatGPT Pro account safely.
Prevents browser-level prompts that ask to save or autofill login protecting your account from accidental exposure.
Stops tools like Wireshark or Fiddler from sniffing login sessions or authentication data. If such software is detected, DICloak will automatically block access to the account.
DICloak’s built-in password manager stores credentials securely, allowing users to log in without ever seeing the password. This is perfect for maintaining control over your ChatGPT Pro account sharing without risking leaks or unauthorized usage.
One of the biggest threats to safe ChatGPT Pro account sharing isn’t the login — it’s what users might do after they log in. From developer tools to malicious extensions, the wrong kind of access can put the whole account at risk.
DICloak gives you full control over what your team members can and cannot do inside the browser, so your account stays protected even in shared environments.
To prevent users from inspecting cookies, editing browser scripts, or installing risky extensions, DICloak offers advanced restrictions that help lock down the environment. With block access to browser developer tools and prevent local extension installations, you can stop common methods used to steal session data or inject malicious scripts. This means no one can sneak in cookie grabbers or tamper with the login session, making it one of the smartest ways to protect a ChatGPT Pro shared account from internal threats.
DICloak also includes powerful website-level restrictions, allowing you to whitelist or blacklist specific URLs based on your needs. For example, you can block access to the Chrome Web Store to stop users from installing cookie or session-grabbing extensions. You can even restrict incognito mode to prevent users from bypassing tracking or creating unmonitored sessions.These controls are especially important if you're managing multiple users under one ChatGPT Pro account. By locking down browser behaviour and limiting access only to trusted sites like chat.openai.com, you reduce the risk of leaks, abuse, or unauthorised modifications that could get the account flagged or banned.
If you're sharing a ChatGPT Pro account with a larger group — or even running a resale model — managing who gets access, when, and how long is critical. Without the right controls, it's easy to lose track of who’s logging in, where they’re from, and what they’re doing.
When adding new members, you can set an expiration date and time zone for their access. Once the time is up, the member’s profile will be automatically deactivated, removing the need for manual tracking.
This is incredibly useful if you’re splitting a ChatGPT Pro account on a timed basis for example, renting access for one week or one month while keeping things fair and secure.
DICloak keeps a detailed history of all activity through its operation logs, including login IPs, device names, time stamps, and even browsing actions. You’ll be able to see exactly who accessed the account, from which country and device, when they logged in, and what actions they performed during the session. This level of transparency is essential for ChatGPT Pro account sharing in situations involving strangers or group-based access, where trust and accountability are non-negotiable.
For users who need to manage ChatGPT Pro account sharing at scale, especially in business or group-buy models, DICloak provides Open API access that integrates seamlessly with your workflow. With API support, you can:
✅ Retrieve and manage profile lists programmatically
✅ Enable or disable member profiles based on time, usage, or other triggers
✅ Execute automation scripts for full control over access and usage scheduling
By now, it’s clear that with the right tools, sharing access can be secure and manageable. But what if you want to go one step further and actually allow multiple users to use one ChatGPT Pro account at the same time? Let’s look at how that’s possible.
One of the biggest challenges in ChatGPT Pro account sharing is making sure multiple users can access the account at the same time, without logging each other out. That’s exactly what Multi-open mode in DICloak is designed to solve.By enabling this feature either in global settings or for a specific profile, you allow simultaneous access to the same ChatGPT Pro account from different devices and locations. If you’re collaborating with teammates or running a shared subscription group, this makes it possible for everyone to work in parallel without interruption. No more re-logins, no more “kicking each other out.”
When setting up a ChatGPT Pro shared account for multiple users, one of the most important steps is configuring a static residential proxy. This keeps the login IP consistent across sessions, which helps prevent OpenAI from flagging the account for suspicious activity.Why does this matter? If people from different cities or countries all try to log in at once, OpenAI's systems might detect the mismatch and lock or ban the account. A static proxy ensures all access appears to come from one place, making remote collaboration smooth, secure, and invisible to detection.
Managing passwords across multiple devices and members can be a huge pain, especially if you’re trying to avoid sending sensitive info through chat apps or emails. That’s where DICloak’s data sync feature comes in handy.
When the admin enables data sync while creating an environment, login data like cookies, account passwords, and local storage is automatically synced to the cloud. This means that once the account is logged in for the first time, other authorised users, or future logins, can access it without needing to re-enter the password. It’s a seamless and secure way to maintain access in a ChatGPT Pro multiple-user setup.Now, you might be wondering: what if users can see stuff they shouldn’t — like billing details or subscription status?
That’s exactly why DICloak includes the Web Element Hider. With this extension, you can hide specific parts of a website — like the payment section, account settings, or subscription options — with just a few clicks. Whether you're sharing access with friends or running a group-buy model, you stay in complete control of what others can (and can’t) see inside your ChatGPT Pro account.
Managing multiple users on one ChatGPT Pro account isn’t just about giving people access — it’s about giving them the right access. With DICloak, you can do just that by creating custom member groups and assigning clear permissions for each user.
Start by setting up a member group — like “ChatGPT Pro” — and define what this group can and cannot do. For example, you might allow them to open or close profiles, but block access to proxy settings, extension management, or other unrelated tools. All permissions updated automatically for anyone added to the group.
Next, create an internal member profile for each user.
Here, you can:
Once everything is set up, you can simply copy the ChatGPT Pro login credentials and send them to your assigned members — no need to worry about mismanagement or overexposure. With the right permissions and environment isolation in place, sharing becomes not only possible, but also safe and efficient.
If the issue of PDF not opening in ChatGPT persists, try to clear the browser cache and cookies data. Removing these cache files allows you to improve the performance and address compatibility issues of the browser. This will automatically fix the temporary bugs and unnecessary conflicts with ChatGPT AI when uploading the PDF.
The "An error has occurred" message typically appears when there are temporary glitches, server-side issues, or connectivity problems. It may also result from browser cache conflicts, session timeouts, or exceeding usage limits. These issues disrupt the functionality of ChatGPT until resolved.
If you're looking into sharing ChatGPT Pro account, using tools like DICloak can help you do so securely. It hides browser fingerprints, controls access, and allows role-based user management to minimise risk.
Technically, yes, but only with tools like DICloak that support multi-login environments while protecting login sessions. This is especially useful for ChatGPT Pro multiple-user scenarios.
Unauthorised access, password leaks, regional login conflicts, and eventual bans are common issues when sharing ChatGPT Pro account without proper protections.
No. According to OpenAI’s Terms of Use, ChatGPT Pro account sharing across individuals or IP addresses is not officially permitted. Doing so may result in account restrictions or suspension.