Fatal error: Uncaught Error: Call to undefined function filter_var() in /var/www/roundcubemail/program/lib/Roundcube/bootstrap.php:52
Stack trace:
#0 /var/www/roundcubemail/program/include/iniset.php(78): require_once()
#1 /var/www/roundcubemail/index.php(40): require_once('/var/www/roundc...')
#2 {main}
thrown in /var/www/roundcubemail/program/lib/Roundcube/bootstrap.php on line 52 Internal Error
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