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 ('d94835465d03bada3694ec17ef464627','0','18.188.241.82','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714877762','board.php?boardid=20&sid=f4e9dae0b7ff08ca6039cca44f41485d','0','0','')
mysql error: Duplicate entry 'd94835465d03bada3694ec17ef464627' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 05.05.2024 @ 04:56
Script: /board.php?boardid=20&sid=f4e9dae0b7ff08ca6039cca44f41485d
Referer: