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 ('64476454e796995bb6c926f8abb09c45','0','18.119.139.50','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714779002','board.php?boardid=689&sid=c1fd0e2f8d2ffd2921027a98789f2b24','0','0','')
mysql error: Duplicate entry '64476454e796995bb6c926f8abb09c45' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 01:30
Script: /board.php?boardid=689&sid=c1fd0e2f8d2ffd2921027a98789f2b24
Referer: http://wehrbauten.de/board.php?boardid=689&sid=c1fd0e2f8d2ffd2921027a98789f2b24