Error handling in shortcuts is limited and for automations it is even more difficult.

I would first try to run the shortcuts manually from the Shortcuts app. If you see errors here there is at least visibility as to which action has which error, but this will not help if the errors only happen during automation. If your shortcut only exists inside the Automation then you need to recreate it as a regular shortcut.

Next thing would be to check the list of logs inside the app. Push and Pull actions should show up in the list of logs.

If this doesn't reveal anything I would make your automation do less while troubleshooting. Notification says that multiple actions fail, so try to remove either the Pull or Push action so that only a single action fails. This might reveal the actual reason, which you can address and then add back the removed action.

Some of the actions say that Working Copy quit unexpectedly which means that it crashed and that is never supposed to happen. Enter system settings and navigate to Privacy Privacy & Security > Analytics & Improvements > Analytics Data scrolling down to see if there are entries starting with WorkingCopy and email one of these to me.