Unable to run tor browser on Kali Linux

We are unable to run tor browser on Kali Linux with below error.

root@kali: /home/r2schools/Downloads/tor-browser_en-Us# ./start-tor-browser.desktop Launching './Browser/start-tor-browser --detach'... ./Browser/start-tor-browser: line 37: [: : integer expression expected

The tor browser bundle should not run as root. Exiting

Unable to run tor browser on Kali Linux

Reason: you are using root account. switch it to user account

Solution: Switch from root to another user.