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 ('670b02f1c02c7d2b267a99899c918935','0','3.138.174.195','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715064354','jgs_portal.php?sid=b1c47534bef52d417be8b7f0aa1c9b2b','0','0','')
mysql error: Duplicate entry '670b02f1c02c7d2b267a99899c918935' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 08:45
Script: /jgs_portal.php?sid=b1c47534bef52d417be8b7f0aa1c9b2b
Referer: http://wehrbauten.de/jgs_portal.php?sid=b1c47534bef52d417be8b7f0aa1c9b2b