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 ('2fa20aa7bab768691a7dc5c65f497211','0','3.19.31.73','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714691314','jgs_portal.php?sid=ba72e971258fdad07b44a8f61ed77700','0','0','')
mysql error: Duplicate entry '2fa20aa7bab768691a7dc5c65f497211' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 01:08
Script: /jgs_portal.php?sid=ba72e971258fdad07b44a8f61ed77700
Referer: http://wehrbauten.de/jgs_portal.php?sid=ba72e971258fdad07b44a8f61ed77700