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 ('e3bdb0be5ea96de94a4f0db1705a3c5e','0','18.116.29.74','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715653832','thread.php?threadid=2504&sid=44828d2aad430a9bde1a24e3a9381d6a','0','0','')
mysql error: Duplicate entry 'e3bdb0be5ea96de94a4f0db1705a3c5e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 14.05.2024 @ 04:30
Script: /thread.php?threadid=2504&sid=44828d2aad430a9bde1a24e3a9381d6a
Referer: http://wehrbauten.de/thread.php?threadid=2504&sid=44828d2aad430a9bde1a24e3a9381d6a