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 ('27bdcb67a4939b5b41a2bd8cf10b16d7','0','3.147.103.234','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715849609','search.php?sid=1f024044778434941829a8fee8ecf3e0','0','0','')
mysql error: Duplicate entry '27bdcb67a4939b5b41a2bd8cf10b16d7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 16.05.2024 @ 10:53
Script: /search.php?sid=1f024044778434941829a8fee8ecf3e0
Referer: