phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a17817f9d06cd8da785c3db29d024d74' for key 'PRIMARY'

INSERT INTO phpbb_Alfa_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a17817f9d06cd8da785c3db29d024d74', -1, 1792252865, 1792252865, 'd849d918', 2, 0, 0)

Line : 189
File : sessions.php