Same issue if admin or agent. Chrome or Firefox makes no difference.
It after a long time goes just back to open tickets


I also cant create new tickets. Goes into infinte loading and then into http error 500.
I installed a new clean version in a new subdomain
And I face exact same behaviour.
Here compared to the other system i can see some DB errors:

[INSERT INTO ost2_user__cdata
SET notes
='', user_id
= 3 ON DUPLICATE KEY UPDATE notes
=''] Unknown column 'notes' in 'field list'
---- Ablaufverfolgung ----
#0 (root)/include/mysqli.php(201): osTicket->logDBError('DB Error #1054', '[INSERT INTO o...')
#1 (root)/include/class.dynamic_forms.php(381): db_query('INSERT INTO
os...')
In the "new" installation" i got within 1 hour a 19GB (!) Error Log on the server.... (log of old installation is 49gb...)
I am still downloading but there are countless entries like this:
[Wed Nov 24 23:16:10.517523 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (January 2074 Third Montag) at position 22 (t): The timezone could not be found in the datab
[Wed Nov 24 23:16:10.517525 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (January 2075 Third Montag) at position 22 (t): The timezone could not be found in the datab
[Wed Nov 24 23:16:10.517527 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (last Montag of May 2074) at position 8 (t): The timezone could not be found in the database
[Wed Nov 24 23:16:10.517529 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (last Montag of May 2075) at position 8 (t): The timezone could not be found in the database
[Wed Nov 24 23:16:10.517531 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (September 2074 Vorname Montag) at position 15 (V): The timezone could not be found in the d
[Wed Nov 24 23:16:10.517533 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (September 2075 Vorname Montag) at position 15 (V): The timezone could not be found in the d
[Wed Nov 24 23:16:10.517536 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (October 2074 Second Montag) at position 23 (t): The timezone could not be found in the data
[Wed Nov 24 23:16:10.517538 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (October 2075 Second Montag) at position 23 (t): The timezone could not be found in the data
[Wed Nov 24 23:16:10.517540 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (November 2074 Fourth Donnerstag) at position 14 (F): The timezone could not be found in the
[Wed Nov 24 23:16:10.517544 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (November 2075 Fourth Donnerstag) at position 14 (F): The timezone could not be found in the
[Wed Nov 24 23:16:10.517546 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (Montag 2074-01-08) at position 0 (M): The timezone could not be found in the database in /h
[Wed Nov 24 23:16:10.517548 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (Montag 2074-01-15) at position 0 (M): The timezone could not be found in the database in /h
[Wed Nov 24 23:16:10.517550 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (Dienstag 2074-01-08) at position 0 (D): The timezone could not be found in the database in
[Wed Nov 24 23:16:10.517551 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (Dienstag 2074-01-15) at position 0 (D): The timezone could not be found in the database in
[Wed Nov 24 23:16:10.517553 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (Mittwoch 2074-01-08) at position 0 (M): The timezone could not be found in the database in
[Wed Nov 24 23:16:10.517555 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (Mittwoch 2074-01-15) at position 0 (M): The timezone could not be found in the database in
[Wed Nov 24 23:16:10.517557 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (Donnerstag 2074-01-08) at position 0 (D): The timezone could not be found in the database i
[Wed Nov 24 23:16:10.517559 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (Donnerstag 2074-01-15) at position 0 (D): The timezone could not be found in the database i
[Wed Nov 24 23:16:10.517561 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (Freitag 2074-01-08) at position 0 (F): The timezone could not be found in the database in /
[Wed Nov 24 23:16:10.517565 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (Freitag 2074-01-15) at position 0 (F): The timezone could not be found in the database in /
[Wed Nov 24 23:16:10.517567 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (January 2074 Third Montag) at position 22 (t): The timezone could not be found in the datab
[Wed Nov 24 23:16:10.517569 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (January 2075 Third Montag) at position 22 (t): The timezone could not be found in the datab
[Wed Nov 24 23:16:10.517571 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (last Montag of May 2074) at position 8 (t): The timezone could not be found in the database
[Wed Nov 24 23:16:10.517573 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (last Montag of May 2075) at position 8 (t): The timezone could not be found in the database
[Wed Nov 24 23:16:10.517575 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (September 2074 Vorname Montag) at position 15 (V): The timezone could not be found in the d
[Wed Nov 24 23:16:10.517577 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (September 2075 Vorname Montag) at position 15 (V): The timezone could not be found in the d
[Wed Nov 24 23:16:10.517579 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (October 2074 Second Montag) at position 23 (t): The timezone could not be found in the data
[Wed Nov 24 23:16:10.517580 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (October 2075 Second Montag) at position 23 (t): The timezone could not be found in the data
[Wed Nov 24 23:16:10.517582 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (November 2074 Fourth Donnerstag) at position 14 (F): The timezone could not be found in the
[Wed Nov 24 23:16:10.517585 2021] [fcgid:warn] [pid 2153920] [client 83.150.45.109:0] mod_fcgid: stderr: PHP Warning: DateTime::modify(): Failed to parse time string (November 2075 Fourth Donnerstag) at position 14 (F): The timezone could not be found in the
Where is this coming from? Can the other also check their server logs? Similar stuff?