phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dcdd2ae308f912b62ca8440129f1ef65' 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 ('dcdd2ae308f912b62ca8440129f1ef65', -1, 1524518070, 1524518070, '369c25ae', 0, 0, 0)

Line : 187
File : sessions.php