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 ('8c8a62d798ddf9270e7f521ae878ef47','0','18.223.195.97','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716078643','profile.php?userid=41716&sid=416e0a5b0523744ccb996fefa6569771','0','0','')
mysql error: Duplicate entry '8c8a62d798ddf9270e7f521ae878ef47' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.1.41-3ubuntu12.3
php version: 4.4.9
Date: 19.05.2024 @ 02:30
Script: /wbb2/profile.php?userid=41716&sid=416e0a5b0523744ccb996fefa6569771
Referer: