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 ('72dc1fcc5af1b97040b5ce0939c308e3', -1, 1713581720, 1713581720, '127424c0', -10, 0, 0)

Line : 187
File : sessions.php