Error on Install

Your software Mautic 4
My PHP version is : 7.4

Trying to access via browser I get a 500 error.
No logs on mautic, on apache2 logs it shows:
[Thu May 12 18:35:29.513982 2022] [proxy_fcgi:error] [pid 15381:tid 140692105910016] [client 127.0.0.1:58496] AH01071: Got error ‘PHP message: PHP Fatal error: Uncaught Error: Class ‘Mautic\CoreBundle\ErrorHandler\ErrorHandler’ not found in /var/www/html/janeri/mautic/index.php:22\nStack trace:\n#0 {main}\n thrown in /var/www/html/janeri/mautic/index.php on line 22’

When trying to upadte, I got the error

php bin/console mautic:update:apply

PHP Fatal error: Uncaught Error: Class ‘Mautic\CoreBundle\Release\ThisRelease’ not found in /var/www/html/janeri/mautic/app/AppKernel.php:47
Stack trace:
#0 /var/www/html/janeri/mautic/bin/console(39): AppKernel->__construct()
#1 {main}
thrown in /var/www/html/janeri/mautic/app/AppKernel.php on line 47

Tried to install from fresh the 4 version, but no success.

Can anyone help? Thanks!