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 ('5a4b030d18d7c0eff33391332e36b483','0','18.222.111.24','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1713551999','board.php?boardid=260&sid=40a46be9ac4e58567aa26d5026b64be7','0','0','')
mysql error: Duplicate entry '5a4b030d18d7c0eff33391332e36b483' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 19.04.2024 @ 20:39
Script: /board.php?boardid=260&sid=40a46be9ac4e58567aa26d5026b64be7
Referer: http://wehrbauten.de/board.php?boardid=260&sid=40a46be9ac4e58567aa26d5026b64be7