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 ('19844f79c6fbb58ed86eae695f20e704', -1, 1730435226, 1730435226, '0d3b72e4', -1, 0, 0)

Line : 195
File : sessions.php