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 ('6d0255df35a44f2d3a483d2c27bc089c', -1, 1714672644, 1714672644, '12bd027a', -9, 0)

Line : 158
File : sessions.php