Joomla installator error 404

Tried to install Joomla on my newly OLS+Cyberpanel. Accessing the install URL after upload, gives me a 500 error. Coming from Nginx got that error there if I didn’t associate all my public_html( where Joomla was) directories and files in them with the default server user and group, in that case admin/admin.

Being a new ecosistem to me, tried cyberpanel automatic Joomla installator. To see how a proper setup looks like on litespeed, what have I missed first time. Clicking instal now button gives me this error:
Installation failed. Error message: [404]