This message is given when the GitHub Limit of 2GB is reached.
Your template should never be so big. However if you run the template locally as well, you do a npm install. This makes the size to big. Mendix should respect the ..gitignore file... but to does not :(
It is not needed and unwanted, that those files are committed to GitHub any way.
Solution. In Global Config / Build type, select a empty directory. (or remove the current content) and "Configure and push to GithHub" again.
Same issue. First build was ok. 2nd failed. Only change was I added camera permissions. Mendix 9.24.25, Build app: 1.0.132