SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('544eec84cddae971d057b7e51aa0a32b','0','3.15.5.183','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714231360','profile.php?userid=8313&sid=72e76c97bb9d8f3d76bd522668c556ae','0','0','')
mysql error: Duplicate entry '544eec84cddae971d057b7e51aa0a32b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.1.73-1
php version: 5.3.3-7+squeeze19
Date: 27.04.2024 @ 17:22
Script: /waller/profile.php?userid=8313&sid=72e76c97bb9d8f3d76bd522668c556ae
Referer: