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 ('b7b7d7de8004fdd3fca4cc7f1557d008','0','3.15.27.232','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715212714','board.php?boardid=253&sid=aeb80f621552ce25a56c13024ea2715b','0','0','')
mysql error: Duplicate entry 'b7b7d7de8004fdd3fca4cc7f1557d008' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 01:58
Script: /board.php?boardid=253&sid=aeb80f621552ce25a56c13024ea2715b
Referer: