Jobqueue blocked !

Hello,
I have a problem with the jobqueue.
This one is blocked.

2021-08-31 10:02 server.mywebsite.com Update web_domain
2021-08-31 10:01 server.mywebsite.com Update web_domain
2021-08-31 10:01 server.mywebsite.com Update web_domain
2021-08-31 10:01 server.mywebsite.com Insert web_domain

How can I reset/clear the jobqueue ?

 

As the Jobqueue is blocked I can't update the server log to Debug
I followed the tutorial and as a result of the command '/usr/local/ispconfig/server/server.sh' I get this:

Code:

31.08.2021-10:39 - WARNING - There is already a lockfile set, but no process running with this pid (3831). Continuing.
PHP Warning:  Undefined array key "admin_mail" in /usr/local/ispconfig/server/server.php on line 97
PHP Warning:  Undefined array key "php_fpm_incron_reload" in /usr/local/ispconfig/server/plugins-available/z_php_fpm_incron_reload_plugin.inc.php on line 109
31.08.2021-10:39 - DEBUG - Calling function 'check_phpini_changes' from plugin 'webserver_plugin' raised by action 'server_plugins_loaded'.
PHP Fatal error:  Uncaught Error: Call to undefined function mb_detect_encoding() in /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php:527
Stack trace:
#0 /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php(179): db->escape()
#1 /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php(298): db->_build_query_string()
#2 /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php(337): db->_query()
#3 /usr/local/ispconfig/server/lib/app.inc.php(193): db->query()
#4 /usr/local/ispconfig/server/lib/classes/plugins.inc.php(155): app->log()
#5 /usr/local/ispconfig/server/server.php(174): plugins->raiseAction()
#6 {main}
  thrown in /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php on line 527

 

That makes me suspect default PHP version on that host has changed, or some necessary PHP modules for the PHP version it uses are not installed. Maybe follow the Read before posting instructions.

 

@till @Taleman thanks for your help !!
Do I need to switch to PHP 7.4 each time I will do an update of the server ?

 

Thanks