Fix caa90019 Microsoft Teams error

Many users have been complaining about encountering error code caa90019 every time they try to log in using Microsoft Teams. Even though this is a convenient communication app, this mistake is very common.

Fix Microsoft Teams error: caa90019

In this case, the error message displayed by the system is: "Sorry, we are currently experiencing problems." We have prepared a list of ultimate solutions to help you resolve Microsoft Teams error caa90019.

Initial steps

Run as administrator

Clear Microsoft Teams application cache

Delete settings.json file

Clear Microsoft Teams data from Credential Manager

1]Preliminary steps

If you have not done so already, please close and restart the application. It may require freeing memory or clearing temporary files. Please note that some apps may be running in the background, so the close button may not be fully functional. Applications can be closed properly through Task Manager.

If the problem persists, you may consider updating the application or operating system version. Sometimes, updating software can fix some bugs or issues. At the same time, make sure your computer has the latest drivers and patches installed to ensure system stability and security.

Please confirm that your Microsoft Teams application has been updated to the latest version and restart your router and modem to resolve issues that may be causing Microsoft Teams error caa90019.

If you are using an office-installed Teams app, please consult your system administrator or IT support for further assistance.

2]Run as administrator

If you are using a work or school account, you need to delete the account first and then run it again as an administrator.

Open Windows Settings and click Accounts on the left.

On the next screen, go to Account Settings on the right and click Access Work or School Options.

Next, click Remove to delete the account.

Now, restart your PC and reinstall Microsoft Team.

After reinstalling, right-click the application, select Run as administrator, log in to your account, and check if it still shows the error.

3]Clear Microsoft Teams application cache

More commonly, accumulated cache files are a reason behind Microsoft Teams errors. Therefore, it is recommended to clear the Microsoft Team cache regularly to prevent such issues from occurring.

Open File Explorer and navigate to the following path:

C：UserNameAppDataRoamingMicrosoftTeams

Now, delete the files in the following folders individually:

%AppData%MicrosoftTeamsBLOB_STORAGE
%AppData%MicrosoftTeams应用程序缓存缓存
%AppData%MicrosoftTeamsCACHE
%AppData%MicrosoftTeams数据库
%AppData%MicrosoftTeamsIndexedDB
%AppData%MicrosoftTeamsgpucache

Meanwhile, if you are using the web version of Microsoft Team, make sure you also clear your browser cache to fix the caa90019 error.

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