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 ('974c073dde411a8429394220993be84e','0','18.223.107.149','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715554272','index.php?hidecat=126&sid=a77bb24197eeffbc79e0641df9482347','0','0','')
mysql error: Duplicate entry '974c073dde411a8429394220993be84e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 00:51
Script: /index.php?hidecat=126&sid=a77bb24197eeffbc79e0641df9482347
Referer: http://wehrbauten.de/index.php?hidecat=126&sid=a77bb24197eeffbc79e0641df9482347