SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb2_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('19c5d52cb30f473793305ec87414ce9c','0','18.118.210.159','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716255791','search.php?action=user&userid=3595&sid=789edc44cd80f0ea863e3a782558906b','0','0','')
mysql error: Duplicate entry '19c5d52cb30f473793305ec87414ce9c' for key 1
mysql error number: 1062
mysql version: 4.1.22-standard
php version: 5.3.29-1+hw8
Date: 20.05.2024 @ 21:43
Script: /wbb2/search.php?action=user&userid=3595&sid=789edc44cd80f0ea863e3a782558906b
Referer: