Roundcube blank screen

[Qesik]

Hello,
When i go to ip/webmail i have blank screen

1. /var/lib/php/session has 1777 chmod
2. update/upgrade its done
3. php -v

Code: Select all

PHP 7.4.24 (cli) (built: Sep 23 2021 22:05:24) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
    with Zend OPcache v7.4.24, Copyright (c), by Zend Technologies

4. Debian 9