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 ('710686fb0e2f623c73ab2b3b128cf043', -1, 1713989149, 1713989149, '038f04b5', 0, 0, 0)

Line : 187
File : sessions.php