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 ('15fba17d07b0be988a1f5cbcc15ce771','0','3.144.193.129','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715218966','thread.php?goto=nextnewest&threadid=2493&sid=aa0d81c06a1473bd89fbdc4bd0ef40d3','0','0','')
mysql error: Duplicate entry '15fba17d07b0be988a1f5cbcc15ce771' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 03:42
Script: /thread.php?goto=nextnewest&threadid=2493&sid=aa0d81c06a1473bd89fbdc4bd0ef40d3
Referer: