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 ('1a343ac8a901d9c0b543b241e26655c4','0','18.216.34.146','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714316463','addreply.php?postid=69498&sid=96c970e28f38bbc7a45d28201020cafd','0','0','')
mysql error: Duplicate entry '1a343ac8a901d9c0b543b241e26655c4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 28.04.2024 @ 17:01
Script: /addreply.php?postid=69498&sid=96c970e28f38bbc7a45d28201020cafd
Referer: