phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4420b1696a1dae4df012802353381cc3' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('4420b1696a1dae4df012802353381cc3', -1, 1770246829, 1770246829, 'd849d877', 0, 0, 0, '0')

Line : 187
File : sessions.php