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 ('513c0b408984d307017d1a73c4e9979c','0','18.118.210.133','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716107731','thread.php?threadid=4789&goto=lastpost&sid=79805f6dba8bc960771fa57d1c3b0246','0','0','')
mysql error: Duplicate entry '513c0b408984d307017d1a73c4e9979c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 19.05.2024 @ 10:35
Script: /thread.php?threadid=4789&goto=lastpost&sid=79805f6dba8bc960771fa57d1c3b0246
Referer: