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 ('be13b65f275cf1f4e80ee73c1e6e02b8','0','18.117.100.20','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1717152498','thread.php?postid=4111&sid=66d2b7c46438dc07e1b86139f2430d08','0','0','')
mysql error: Duplicate entry 'be13b65f275cf1f4e80ee73c1e6e02b8' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.25
php version: 5.4.45
Date: 31.05.2024 @ 12:48
Script: /thread.php?postid=4111&sid=66d2b7c46438dc07e1b86139f2430d08
Referer: http://www.selfmadehangar.de/thread.php?goto=lastpost&threadid=2830&sid=5b46fca43d805036d07c6441ec77e7f5