Thanks for responding Ashley,
i attempted the upload, it said file contains extension not on white list.
I have an idea on what could have caused the problem...
I went to the start page and opened a "new project" while editing the original game, to do some test runs on a new idea.
the program opened a new "layout1 and event sheet1" inside my current project. when i got ready to close out i saved with the disk icon at top left of screen, and closed the window. it prompted me to save the "new project" I replied no.
since this was open in my original program, and then removed... it may have caused the error. "just an idea"
but at any rate... i had not made many changes, if you can tell me how to restore the original, it is uploaded to the arcade as "roman tower" i could start from there. Thanks for your help again.