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 ('b654d254fb915bdfa9907e9f6a540523','0','18.191.33.207','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715767533','jgs_portal.php?sid=21184f159d71c8c8670cecd2f664b08a','0','0','')
mysql error: Duplicate entry 'b654d254fb915bdfa9907e9f6a540523' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 12:05
Script: /jgs_portal.php?sid=21184f159d71c8c8670cecd2f664b08a
Referer: http://wehrbauten.de/jgs_portal.php?sid=21184f159d71c8c8670cecd2f664b08a