TorBrowser window won't appear on the screen

When I open tor browser by running "Start Tor Browser" the connection appears to be successful, but no TorBrowser window appears afterwards. When I run the program again I receive the following error message: "Tor Browser is already running, but is not responding. The old Tor Browser process must be closed to open a new window." No browser windows ever appear on the screen. After installing the TorBrowser again, everything is good for a couple of times, but then the same problem occurs. I'm running the program on Windows 10. My TorProject installer file is "torbrowser-install-win64-9.0a1_en-US".

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Username: mrasoulib

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