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Regarding your question:
You can only get a run-time error message from running code. So the above error message proves that your copy of the app does run code.
However, the code is incomplete, likely due to an omission, hence the error message. In this case, the code is trying to construct an object, but it is not being given enough parameters to do that.
Look for code that constructs an object. It will be the name of a class, followed by parentheses. Inside the parentheses should be a complete set of parameters needed to complete the construction work. One of these cases will be short two parameters.
You haven’t provided enough information for us to pin it down any further.
For better answers, see How to ask a good question - Anvil Q&A - Anvil Community Forum.
Hope this helps. And again, welcome to the Forum!