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 ('aa26204c8f638a754f81c1051ea110ea', -1, 1714026240, 1714026240, '03929863', -10, 0, 0)

Line : 187
File : sessions.php