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 ('fe23b5b51c1062a8d9f69e671f581539','0','18.220.81.106','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714760943','misc.php?action=imprint&sid=10e9007e2272473999bac433a50656bd','0','0','')
mysql error: Duplicate entry 'fe23b5b51c1062a8d9f69e671f581539' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 20:29
Script: /misc.php?action=imprint&sid=10e9007e2272473999bac433a50656bd
Referer: http://wehrbauten.de/misc.php?action=imprint&sid=10e9007e2272473999bac433a50656bd