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 ('f1670de52dd68ce7b5bdf584ed68ebfd','0','18.188.152.162','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715260260','thread.php?threadid=828&sid=7960c1ecbbc497d4d4c38db3df58bda8','0','0','')
mysql error: Duplicate entry 'f1670de52dd68ce7b5bdf584ed68ebfd' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 15:11
Script: /thread.php?threadid=828&sid=7960c1ecbbc497d4d4c38db3df58bda8
Referer: