Error message when creating a ticket

Hello, We encounter some errors when we want to create a ticket with the admin profile or group member profile : This is the error : 2020-12-22 18:13:28.488 ===== TRACE ===== DISCONNECTED USER 'Pierre'2020-12-22 18:13:31.970 ===== TRACE ===== NEW CONNECTED USER 'admin'2020-12-22 18:13:53.602 ===== TRACE ===== Cannot check Version at projeqtor.org/admin/getVersion.php2020-12-22 18:13:53.603 ===== TRACE ===== Maybe allow_url_fopen is Off in php.ini...2020-12-22 18:14:06.084 ===== TRACE ===== Cron started at 22/12/2020 18:14:062020-12-22 18:14:06.160 ***** ERROR ***** [V8.2.4] Exception-[42S22] SQLSTATE[42S22]: Column not found: 1054 Unknown column 'responsible' in 'where clause'2020-12-22 18:14:06.160 ***** ERROR ***** [V8.2.4] For query : select * from requirement where ((idProject not in (0) or idProject is null ) and (idProject not in (0) or idProject is null or (idResource='1') ) and (idProject not in (0) or idProject is null or (idUser='1') )) and ( creationDateTime>= '2019-12-16 00:00:00' and creationDateTime<='2019-12-22 23:59:59' ) and idProject in (0, 2) and responsible='3'2020-12-22 18:14:06.161 ***** ERROR ***** [V8.2.4] Strack trace :2020-12-22 18:14:06.161 ***** ERROR ***** [V8.2.4]