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 ('b4860b5a553855cb161cbc3171d793fe','0','3.144.109.5','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715384523','board.php?boardid=286&sid=20902dd95b9411e4540dc116eaa6535d','0','0','')
mysql error: Duplicate entry 'b4860b5a553855cb161cbc3171d793fe' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 01:42
Script: /board.php?boardid=286&sid=20902dd95b9411e4540dc116eaa6535d
Referer: