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 ('2f5452cbba8dd88d20201f3a9b738fd6', -1, 1714064515, 1714064515, '0d3becdb', -11, 0, 0)

Line : 187
File : sessions.php