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 ('5d15a71aac178fba0cfb6ef357792de1','0','52.15.137.91','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715698622','board.php?boardid=281&sid=8548cc8f5e8bfce72013c4b2df10a7c5','0','0','')
mysql error: Duplicate entry '5d15a71aac178fba0cfb6ef357792de1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 14.05.2024 @ 16:57
Script: /board.php?boardid=281&sid=8548cc8f5e8bfce72013c4b2df10a7c5
Referer: