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 ('eb77cd0839ca02f6ac979df5b065c0f2','0','18.119.139.50','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715377526','jgs_portal.php?sid=a9b4a1fdfc52055283c873bb60b4a047','0','0','')
mysql error: Duplicate entry 'eb77cd0839ca02f6ac979df5b065c0f2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 23:45
Script: /jgs_portal.php?sid=a9b4a1fdfc52055283c873bb60b4a047
Referer: http://wehrbauten.de/jgs_portal.php?sid=a9b4a1fdfc52055283c873bb60b4a047