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 ('bcb53c38f99fa9de9db4fc8d737ed582','0','3.149.25.163','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715565418','thread.php?goto=lastpost&threadid=2500&sid=5a8b07a02a2967d6062a92ef0c5e4730','0','0','')
mysql error: Duplicate entry 'bcb53c38f99fa9de9db4fc8d737ed582' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 03:56
Script: /thread.php?goto=lastpost&threadid=2500&sid=5a8b07a02a2967d6062a92ef0c5e4730
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=2500&sid=5a8b07a02a2967d6062a92ef0c5e4730