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 ('aa9630224d6e0bc63b982b0816c6cde4','0','18.188.142.146','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714115809','editpost.php?postid=324330&sid=4bf8b32256ec3a0327fca5f042b28873','0','0','')
mysql error: Duplicate entry 'aa9630224d6e0bc63b982b0816c6cde4' for key 1
mysql error number: 1062
mysql version: 4.1.22-standard
php version: 5.3.29-1+hw8
Date: 26.04.2024 @ 03:16
Script: /wbb2/editpost.php?postid=324330&sid=4bf8b32256ec3a0327fca5f042b28873
Referer: