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 ('c60b74e4c4d84e1d87120b130a2fc098','0','18.117.233.54','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715364547','board.php?boardid=234&page=1&daysprune=1000&sortfield=starter&sortorder=ASC&sid=517a73ec9fa542c17c474e59a0ca8b94','0','0','')
mysql error: Duplicate entry 'c60b74e4c4d84e1d87120b130a2fc098' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 20:09
Script: /board.php?boardid=234&page=1&daysprune=1000&sortfield=starter&sortorder=ASC&sid=517a73ec9fa542c17c474e59a0ca8b94
Referer: