All linux commands no working after try install python3.7

I have big, weird problem. I have server on Hetzner with Ubuntu 20. I tried install python3.7.2 with this instruction: wget https://www.python.org/ftp/python/3.7.2/Python-3.7.2.tgz Where version can be specific, the above FTP location contains lots of versions. tar -xvf Python-.tgz cd Python- ./configure make sudo checkinstall Until 'make' command everything was fine, but after 'sudo checkinstall' I get a error: File "/home/Python-3.7.2/Lib/ctypes/__init__.py", line 7, in from _ctypes import Union, Structure, Array ModuleNotFoundError: No module named '_ctypes' make: *** [Makefile:1130: install] Error 1 **** Installation failed. Aborting package creation. Restoring overwritten files from backup.../usr/bin/checkinstall: line 95: /usr/bin/gettext: No such file or directory /usr/bin/checkinstall: line 102: /usr/bin/gettext: No such file or directory /usr/bin/checkinstall: line 319: /usr/bin/rm: No such file or directory /usr/bin/checkinstall: line 320: /usr/bin/rm: No such file or directory /usr/bin/checkinstall: line 95: /usr/bin/gettext: No such file or directory /usr/bin/checkinstall: line 95: /usr/bin/gettext: No such file or directory And now in this moment all linux commands not working, ls, ps, python etc... -bash: /usr/bin/su: No such file or directory -bash: /usr/bin/ls: No such file or directory -bash: /usr/bin/ps: No such file or directory I reboot server manually, but it's not working. Anybody have a idea what's now? I never used 'make' and 'checkinstall' commands and now I'm stuck