To help us troubleshoot any problems you're having with your TeX distribution, we have created a tool that gathers information about your installation. The tool is located at:

https://github.com/vallettaventures/TexpadKB/blob/master/support/texpad-diagnostics

To run the texpad-diagnostics tool:

This should create texpad-diagnostics-report.txt on your desktop, please send this file to us at support@vallettaventures.com with a description of the problem you're having.