phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '573cdafa6fe63aa556ec21124d6e7faa' 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 ('573cdafa6fe63aa556ec21124d6e7faa', -1, 1768188618, 1768188618, 'd849d889', -4, 0, 0)

Line : 187
File : sessions.php