WARNING(2): "include_once(/var/www/web22947552/html/system/classes/system_info/TimezoneSetter.inc.php): failed to open stream: No such file or directory"

WARNING(2): "include_once(): Failed opening '/var/www/web22947552/html/system/classes/system_info/TimezoneSetter.inc.php' for inclusion (include_path='.:/opt/plesk/php/7.1/share/pear')"

FATAL ERROR(1): "Uncaught Error: Class 'TimezoneSetter' not found in /var/www/vhosts/h33779.web103.alfahosting-server.de/html/system/core/MainFactory.inc.php(517) : eval()'d code:1
Stack trace:
#0 /var/www/vhosts/h33779.web103.alfahosting-server.de/html/system/core/MainFactory.inc.php(517): eval()
#1 /var/www/vhosts/h33779.web103.alfahosting-server.de/html/includes/application_top.php(92): MainFactory::create_object('TimezoneSetter')
#2 /var/www/vhosts/h33779.web103.alfahosting-server.de/html/index.php(27): include('/var/www/vhosts...')
#3 {main}
  thrown"