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 ('b0f4412ffbf22c3f621544d0cbc4c0e6','0','18.221.187.121','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714045982','board.php?boardid=32&sid=c554329b61abb419e2574baa1f1d044e','0','0','')
mysql error: Duplicate entry 'b0f4412ffbf22c3f621544d0cbc4c0e6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 25.04.2024 @ 13:53
Script: /board.php?boardid=32&sid=c554329b61abb419e2574baa1f1d044e
Referer: