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 ('d408da19c41fe1067b00aac5e0f7f3e9','0','18.224.39.74','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714643578','board.php?boardid=241&sid=908843e38f1a3a34c5d5c71facae89e7','0','0','')
mysql error: Duplicate entry 'd408da19c41fe1067b00aac5e0f7f3e9' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 02.05.2024 @ 11:52
Script: /board.php?boardid=241&sid=908843e38f1a3a34c5d5c71facae89e7
Referer: