phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'decaef83708cb5fc8326625b162e8af1' for key 'PRIMARY'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('decaef83708cb5fc8326625b162e8af1', -1, 1776857874, 1776857874, 'ac120002', 4, 0, 0)

Line : 187
File : sessions.php