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 ('93ead6c6fe0071d0915f29d42c4ea51f','0','18.226.180.68','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715541346','profile.php?userid=15380&sid=8d59087eee95ed842843ae1fcf59ab6b','0','0','')
mysql error: Duplicate entry '93ead6c6fe0071d0915f29d42c4ea51f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.1.41-3ubuntu12.3
php version: 4.4.9
Date: 12.05.2024 @ 21:15
Script: /wbb2/profile.php?userid=15380&sid=8d59087eee95ed842843ae1fcf59ab6b
Referer: