phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ff612a5471065236cd693e56682fb2f0' 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 ('ff612a5471065236cd693e56682fb2f0', -1, 1752449600, 1752449600, 'd849d8d8', 46, 0, 0)

Line : 187
File : sessions.php