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 ('5e871f997563d112d0298a79d88156a2','0','3.147.28.202','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715899371','thread.php?goto=nextnewest&threadid=1406&sid=b9b68e0c0dc17cd79010ce92cbdfff9f','0','0','')
mysql error: Duplicate entry '5e871f997563d112d0298a79d88156a2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 17.05.2024 @ 00:42
Script: /thread.php?goto=nextnewest&threadid=1406&sid=b9b68e0c0dc17cd79010ce92cbdfff9f
Referer: http://wehrbauten.de/thread.php?goto=nextnewest&threadid=1406&sid=b9b68e0c0dc17cd79010ce92cbdfff9f