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 ('ecd326da4f8ae7ac49d6f83f27a27205','0','18.116.21.109','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716213482','board.php?boardid=38&sid=c63aa5aa7c66f500fd13070d283149c4','0','0','')
mysql error: Duplicate entry 'ecd326da4f8ae7ac49d6f83f27a27205' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 20.05.2024 @ 15:58
Script: /board.php?boardid=38&sid=c63aa5aa7c66f500fd13070d283149c4
Referer: