Thanks for the help and the resolution of probema
I solved with the first command:
# a2enmod fcgid.
The second command since the first works, can I avoid it?
# /usr/local/psa/admin/sbin/httpdmng --reconfigure-all
Now if I try to install prestashop I get the following errors:
Permissions on files and folders
Recursive write permissions for Apache user on ~/config/
Recursive write permissions for Apache user on ~/cache/
Recursive write permissions for Apache user on ~/log/
Recursive write permissions for Apache user on ~/img/
Recursive write permissions for Apache user on ~/mails/
Recursive write permissions for Apache user on ~/modules/
Recursive write permissions for Apache user on ~/themes/default-bootstrap/lang/
Recursive write permissions for Apache user on ~/themes/default-bootstrap/pdf/lang/
Recursive write permissions for Apache user on ~/themes/default-bootstrap/cache/
Recursive write permissions for Apache user on ~/translations/
Recursive write permissions for Apache user on ~/upload/
Recursive write permissions for Apache user on ~/download/
how to solve?