phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6c403dfda787b1cc3c4f9578ec0224c7' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('6c403dfda787b1cc3c4f9578ec0224c7', -1, 1764323595, 1764323595, 'd849d83e', -9, 0, 0)

Line : 187
File : sessions.php