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 ('bba1154208bb2c47d2a2b47b71fc0b94','0','3.145.201.47','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715426981','board.php?boardid=485&sid=ad20c20c0c87567f700c586e4c81688c','0','0','')
mysql error: Duplicate entry 'bba1154208bb2c47d2a2b47b71fc0b94' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 13:29
Script: /board.php?boardid=485&sid=ad20c20c0c87567f700c586e4c81688c
Referer: http://wehrbauten.de/board.php?boardid=485&sid=ad20c20c0c87567f700c586e4c81688c