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I resolved this issue by resetting the Teams app in Settings:

1. Type settings in the search box, and then select the Settings app from the results.
2. Select Apps > Installed apps, and then type Microsoft Teams in the search box.
3. Locate the New Microsoft Teams app from the results, select the More options button (...) on the right, and then select Advanced options.
4. In the Reset section, select Reset.
5. Restart Teams.

This will clear the cache in Teams and when you re-open Teams it should open normally.

This fixed the issue!

The problem fixed. Thank you, guys!

Ok. I think there can be something wrong with the computer.

Can you launch task manager, go to performance tab and share a screenshot please.

Also type msinfo32.exe in the search on the taskbar and hit enter, then share a screenshot of the pop up.

On the upper right you have a yellow triangle error side, can you click on it and see what it says?