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 ('8339ab0f62f60f2d7eb0b794c7930524', -1, 1715905885, 1715905885, '12d80c92', 0, 0)

Line : 158
File : sessions.php