SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions VALUES ('56171b30bdc95e32522ba3e65e655e56','52','85.13.150.62','Mozilla/5.0 (Bayoumas ICM-Galaxy Bot)','1745754529','ct_mail.php?Page=352649882','0','0','0','0','')
mysql error: Duplicate entry '56171b30bdc95e32522ba3e65e655e56' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.11.11-MariaDB-0ubuntu0.24.04.2-log
php version: 5.6.40-nmm10
Date: 27.04.2025 @ 13:48
Script: /wbb2/ct_mail.php?Page=352649882
Referer: