On the root of osticket i've find a error_log file of 270MB of size.
On this file there is 1'167'024 lines of events "PHP Warning".
The events corrispond to only two days (30 May 2022 and 19 Apr 2022)
I attach some lines to debug:
[30-May-2022 11:06:56 UTC] PHP Warning: DateTime::modify(): Failed to parse time string (Giovedì 2075-03-22) at position 0 (G): The timezone could not be found in the database in /home/xxxxx/public_html/include/class.schedule.php on line 802
[30-May-2022 11:06:56 UTC] PHP Warning: DateTime::modify(): Failed to parse time string (Giovedì 2075-03-29) at position 0 (G): The timezone could not be found in the database in /home/xxxxx/public_html/include/class.schedule.php on line 837
[30-May-2022 11:06:56 UTC] PHP Warning: DateTime::modify(): Failed to parse time string (Venerdì 2075-03-22) at position 0 (V): The timezone could not be found in the database in /home/xxxxx/public_html/include/class.schedule.php on line 802
[30-May-2022 11:06:56 UTC] PHP Warning: DateTime::modify(): Failed to parse time string (Venerdì 2075-03-29) at position 0 (V): The timezone could not be found in the database in /home/xxxxx/public_html/include/class.schedule.php on line 837
[30-May-2022 11:06:56 UTC] PHP Warning: DateTime::modify(): Failed to parse time string (Gennaio 1 2075) at position 0 (G): The timezone could not be found in the database in /home/ds2an9bp/public_html/include/class.schedule.php on line 802
[30-May-2022 11:06:56 UTC] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /home/xxxxx/public_html/include/class.schedule.php on line 857
Some server informations:
PHP: 7.2.22
MySQL: 5.6.35
WebServer: Apache