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 ('7914c66044c757be5ab59dbcb6508fb0','0','18.227.0.192','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714046144','board.php?boardid=428&sid=ff2a3c0877a8079ea0a2ebdd700809d2','0','0','')
mysql error: Duplicate entry '7914c66044c757be5ab59dbcb6508fb0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 25.04.2024 @ 13:55
Script: /board.php?boardid=428&sid=ff2a3c0877a8079ea0a2ebdd700809d2
Referer: http://wehrbauten.de/board.php?boardid=428&sid=ff2a3c0877a8079ea0a2ebdd700809d2