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 ('a50c2b34f09127c68ea05ac6fee31c14','0','18.119.133.228','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715220615','thread.php?goto=lastpost&threadid=2204&sid=74468dc3693a50b349af5909a3ca3de8','0','0','')
mysql error: Duplicate entry 'a50c2b34f09127c68ea05ac6fee31c14' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 04:10
Script: /thread.php?goto=lastpost&threadid=2204&sid=74468dc3693a50b349af5909a3ca3de8
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=2204&sid=74468dc3693a50b349af5909a3ca3de8