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 ('967d7a178d33e6c976e0f21ccca30559','0','18.119.118.99','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715321651','board.php?boardid=415&sid=8f8d5a12da2a4c0ae3c9c6cd27c7a520','0','0','')
mysql error: Duplicate entry '967d7a178d33e6c976e0f21ccca30559' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 08:14
Script: /board.php?boardid=415&sid=8f8d5a12da2a4c0ae3c9c6cd27c7a520
Referer: