Hi, Alex. Thank you for completing those troubleshooting steps, including checking the web browser. Updating the app is a good first step in fixing this issue, as it refreshes your data and keeps you in line with the latest security improvements.
Since the issue persists, I recommend contacting our Live Support Team. They will investigate why you are unable to send estimates.
In the meantime, you can still send your sales form through the web browser to keep things moving.
If you have other questions, feel free to reply below. We're here to help.
