Your ROOT_URL in app.ini is http://159.89.207.79:3000/ but you are visiting http://9.cron.my.id:3000/tribikram/ET-VISA/commits/commit/e269f8c2859f4475a5cb3fe0c6480373bf3d552b/public/admin/plugins/flag-icon-css/flags/4x3/fm.svg
You should set ROOT_URL correctly, otherwise the web may not work correctly.