Issues with 404 File Not Found in Teams

Hello, My name is EngineTyme, an Independent Advisor and a Microsoft user like you and I would be glad to help you. I am sorry to hear that you are having trouble accessing your file in Teams. There are several possible causes and solutions for the 404 error you are experiencing. Here are some of the troubleshooting steps you can explore: 1. The error may occur if the name of the document library on your SharePoint site was changed from its default, “Shared Documents,” to another name. To resolve this issue, you need to revert the name of the document library to “Shared Documents.” You can do this by using PowerShell or SharePoint Designer. 2. The error may also occur if the ownership information for the Microsoft 365 group that’s associated with the team is missing from Teams. This can happen if an assigned owner leaves the company, and the group becomes orphaned. To resolve this issue, you need to assign an owner to the Microsoft 365 group that’s associated with the team. You can do this by using the Microsoft 365 Admin Center. 3. The error could also be a temporary issue that may resolve itself after some time. If the issue persists for a longer period of time, you can try to run a self-diagnostics tool within your tenant to verify possible issues with accessing files in Teams. You can do this by using the Microsoft 365 Admin Center. 4. Also, you can try to using the Teams on the web to search for the file. “Give back to the Community. Help the next person who has this issue by indicating if this reply solved your problem. Click Yes or No below. “ Please let me know if you have any questions or concern. Best regards, EngineTyme.

I just know the file was being worked on last night till about 5 or 530. It shouldn't have been renamed. The site appears to be gone. Where can I look to see if it exists elsewhere?

Hello, Thank you for your response. It seems you meant the Teams site where the file is saved is missing, right? If yes, were you added to the site by someone or it is your personal site? Best regards, EngineTyme.