Invoice App funktioniert nicht

Simple create & send professional invoices for small businesses, consultants, contractors & freelancers in minutes.  Make business invoices and estimates on the go to get paid faster using one simple app.  Invoice Simple is used by hundreds of thousands of small business owners like you and is consistently rated as one of the top invoice apps.  Make your invoices & estimates look as professional as your business. Modern and customizable.  Be the first to send estimates and quotes to your customers and win more jobs, Automatically generate invoices from estimates with one tap.  Track contractor and small business expenses - snap a photo of your receipt to safely store and claim business expenses.  An easiest invoicing app for estimates, invoices, and bills for any products or service.  Using the invoice app to track your work time couldn't be better for freelancers.  Create multiple professional invoices & estimate templates.  You will find the Invoice app the most powerful tool to replace your daily handwriting paperwork and to free up your hands.  When you're done working, send an invoice to your employer with just one click.  An invoice or estimate can be created and sent in 1 minute or less.  Review estimates and send them quickly.  Email, text or print your invoice as soon as you finish a job.  Manage all your business finances in one place.  Accept cards in-person or online, as well as checks and cash.