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 ('9809fd49dcc53e96ea17ead54ea2d21d', -1, 1713586576, 1713586576, '12754684', -9, 0, 0)

Line : 187
File : sessions.php