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 ('f8a231569585a5fab35d54b36a40a892','0','3.139.81.210','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715453276','calendar.php?sid=649721226854873776255434d2408206','0','0','')
mysql error: Duplicate entry 'f8a231569585a5fab35d54b36a40a892' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 20:47
Script: /calendar.php?sid=649721226854873776255434d2408206
Referer: