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 ('c5f0b6710d08a72995f3b6ed32dec8a6','0','18.191.252.126','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716069629','formmail.php?userid=142&sid=855cf97f8f820de73e3b0861d8052fef','0','0','')
mysql error: Duplicate entry 'c5f0b6710d08a72995f3b6ed32dec8a6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 19.05.2024 @ 00:00
Script: /formmail.php?userid=142&sid=855cf97f8f820de73e3b0861d8052fef
Referer: