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 ('fdf37188e2e4ecbaaaf68c114e8d9469','0','18.188.252.23','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714019105','memberslist.php?sid=16d6eedb400972904ac0d85aa2618cb2','0','0','')
mysql error: Duplicate entry 'fdf37188e2e4ecbaaaf68c114e8d9469' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 25.04.2024 @ 06:25
Script: /memberslist.php?sid=16d6eedb400972904ac0d85aa2618cb2
Referer: