I do not know why my terminal is not working. I clicked terminal icon, and it didn't launch. There is no error message. CTRL + ALT + T is not working, also. I can launch CTRL + ALT + F1
I tried this solution. But, it didn't solve the problem.
After running the gnome-terminal command from an XTerm, I get this error message:
/usr/bin/gnome-terminal:
/usr/bin/python3: bad interpreter: No such file or directory