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 ('487352e69f0f5d91b861d4409ed96c32', -1, 1714714670, 1714714670, '12bf87e0', -8, 0)

Line : 158
File : sessions.php