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 ('403db31dcd2ef849930310a42babeac8','0','18.223.125.219','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714035460','search.php?sid=2e4f26c01d69ea88461639c07c570826','0','0','')
mysql error: Duplicate entry '403db31dcd2ef849930310a42babeac8' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 25.04.2024 @ 10:57
Script: /search.php?sid=2e4f26c01d69ea88461639c07c570826
Referer: