phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '3ba5d5b3d785fe86d97ba1e9f88a9166' 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) VALUES ('3ba5d5b3d785fe86d97ba1e9f88a9166', -1, 1503228494, 1503228494, '36917845', 2, 0, 0)

Line : 187
File : sessions.php