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 ('b44a3bc2dcfd0d7194bb6abe9db17cc4','0','52.15.147.20','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715813152','board.php?boardid=131&sid=3416aa7e4506c7a9e2a2606848eae6b9','0','0','')
mysql error: Duplicate entry 'b44a3bc2dcfd0d7194bb6abe9db17cc4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 16.05.2024 @ 00:45
Script: /board.php?boardid=131&sid=3416aa7e4506c7a9e2a2606848eae6b9
Referer: