phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ffbe1a1264d743ee05245e42cd7fa2ae' 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 ('ffbe1a1264d743ee05245e42cd7fa2ae', -1, 1768148894, 1768148894, 'd849d805', 6, 0, 0)

Line : 187
File : sessions.php