thenekoor
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At least read and analyze what errors the console is giving you. Most likely, in the first case, you did not fill out the hero's properties correctly or completely through Player Properties in the editor. And in the second case, a separate text file is created there, to which you need to provide a link in parentheses for "MessageBox".
And so that you can find answers to similar questions yourself, here is a useful link:
/topic/13059/