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 ('5f56c4257960fcba452ec57f5d8f1f23','0','13.59.127.191','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715731323','board.php?boardid=337&sid=46ef2bc8f691b92e1e939668618e9f60','0','0','')
mysql error: Duplicate entry '5f56c4257960fcba452ec57f5d8f1f23' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 02:02
Script: /board.php?boardid=337&sid=46ef2bc8f691b92e1e939668618e9f60
Referer: http://wehrbauten.de/board.php?boardid=337&sid=46ef2bc8f691b92e1e939668618e9f60