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, session_admin) VALUES ('527e10b7c4d39c22da6168309fce3dd1', -1, 1748228865, 1748228865, '12bc9656', -9, 0, 0)

Line : 190
File : sessions.php