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 ('012b0e04191c32d7031f0a240230e43e', -1, 1714805848, 1714805848, '0310363f', -11, 0, 0)

Line : 187
File : sessions.php