phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ab1c15743077a7e302f2e87a51510188', -1, 1767392406, 1767392406, 'd849d89c', -2, 0, 0)

Line : 193
File : sessions.php