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 ('12ca5c7a51eb03a6f81f571830a85154','0','18.191.46.36','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714771590','board.php?boardid=85&sid=1a353dfc8e0539686c637a60142c416a','0','0','')
mysql error: Duplicate entry '12ca5c7a51eb03a6f81f571830a85154' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 23:26
Script: /board.php?boardid=85&sid=1a353dfc8e0539686c637a60142c416a
Referer: