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 ('274fffe867d6cdec2b039af7f217d6a1','0','3.15.156.140','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715026783','board.php?boardid=238&sid=102d4b1c03d203b1f61f54bdb8c83c20','0','0','')
mysql error: Duplicate entry '274fffe867d6cdec2b039af7f217d6a1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 22:19
Script: /board.php?boardid=238&sid=102d4b1c03d203b1f61f54bdb8c83c20
Referer: