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 ('16e168f3e521344a0aa41be38390e16a','0','13.58.247.31','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715303634','board.php?boardid=82&sid=62da44cdc5eb1d11c4043a57bf64f3a0','0','0','')
mysql error: Duplicate entry '16e168f3e521344a0aa41be38390e16a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 03:13
Script: /board.php?boardid=82&sid=62da44cdc5eb1d11c4043a57bf64f3a0
Referer: http://wehrbauten.de/board.php?boardid=82&sid=62da44cdc5eb1d11c4043a57bf64f3a0