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 ('39378811016562f7e665984146218567','0','3.15.6.77','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714797579','board.php?boardid=502&sid=735526df13c11cdda37b70aed9ca8c80','0','0','')
mysql error: Duplicate entry '39378811016562f7e665984146218567' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 06:39
Script: /board.php?boardid=502&sid=735526df13c11cdda37b70aed9ca8c80
Referer: http://wehrbauten.de/board.php?boardid=502&sid=735526df13c11cdda37b70aed9ca8c80