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 ('ecc99a5565716f2248128456e4e4a42d','0','18.223.172.252','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715018030','board.php?boardid=547&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=ec5e08905d116913868b9fa6b6b678fc','0','0','')
mysql error: Duplicate entry 'ecc99a5565716f2248128456e4e4a42d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 19:53
Script: /board.php?boardid=547&daysprune=1000&sortfield=lastposttime&sortorder=ASC&sid=ec5e08905d116913868b9fa6b6b678fc
Referer: