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 ('b9e82a41b6f61224becbff5cd5d89941','0','18.217.7.193','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715965713','board.php?boardid=159&sid=d720f86d9c534487e95930769e7ad55a','0','0','')
mysql error: Duplicate entry 'b9e82a41b6f61224becbff5cd5d89941' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 17.05.2024 @ 19:08
Script: /board.php?boardid=159&sid=d720f86d9c534487e95930769e7ad55a
Referer: