This repo seems to be missing the App_Data folder. This contains an app.xml file (and possibly an app.json file) that would be important to anyone wishing to use this app. The template file alone is not enough and the other files contain all the important app data. If you need help with this, I am happy to help. Long story short though, you can...
Go to app Admin
Go to App tab
Scroll to bottom
Click Save state
Use the app folder in /Portals/<PortalId>/2sxc/<AppName> as your git repo