Cyberpanel not upgrading

I have some email problems related to ssl (as usual)
I tried to upgrade but now I have:

/usr/local/ line 598: /usr/local/CyberCP/bin/activate: No such file or directory
above command failed…

Is it possible to install cyberpanel from scratch without deleting the sites and the stuff inside?

I have a message:
/bin/sh: 1: /usr/local/CyberCP/bin/python: not found

ok, I could ugrade by doing first
pip install --ignore-installed -r /usr/local/CyberCP/requirments.txt
and then the upgrade