- Edited
Trying to install Jomsocial pro 4.8.0 on clean joomla 4.0.5 gives an error, but which one according to the screenshot
does not install
chico-gois
Hi
Can you check the submitted domain 
It seems its not ready to open yet. Also JomSocial is compatible with Joomla 4.0.3. But it also work for new version as Joomla has bug fixes in new version.
- Edited
I do not know what happens. I installed Joomla 4.0.3 and it doesn't install and I can't even know the error.
On Joomla 3.10.X it installed without problem.
Note: Files downloaded from joomla.org
As for the error in accessing the site, I can't say why it doesn't open.
Thanks
Edited: After installing Joomla 3.10.X, installing Jomsocial and migrating to Joomla 4.0.5 did not work 
chico-gois
Hi
Username and password do not match or you do not have an account yet.
Kindly the login in edit fields it is not working.