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 ('b12e95de82d930ee091a7f8bee93a59a','0','18.219.14.63','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714628222','memberslist.php?sid=e081f22af8251c829b24af1aa459f57d','0','0','')
mysql error: Duplicate entry 'b12e95de82d930ee091a7f8bee93a59a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 02.05.2024 @ 07:37
Script: /memberslist.php?sid=e081f22af8251c829b24af1aa459f57d
Referer: