phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('c66a49b871a202cf630a61b46b9ef55d', -1, 1714286288, 1714286288, '039223cb', -2, 0)

Line : 158
File : sessions.php