SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('a326fa8fd24e3838a2fe539e5aaa92ff','0','13.59.243.194','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715391062','register.php?sid=261a0f8c96789409942e16750f439834','0','0','')
mysql error: Duplicate entry 'a326fa8fd24e3838a2fe539e5aaa92ff' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 03:31
Script: /register.php?sid=261a0f8c96789409942e16750f439834
Referer: