phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '67a63e5c369c5d52d5c1cfe8ff116933' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('67a63e5c369c5d52d5c1cfe8ff116933', -1, 1771112769, 1771112769, 'd849d800', -4, 0, 0)

Line : 187
File : sessions.php