phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'efdb2f87df772835c16da13a0bb93c98' 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 ('efdb2f87df772835c16da13a0bb93c98', -1, 1792097787, 1792097787, 'd849d918', 2, 0, 0)

Line : 187
File : sessions.php