invalid view (default/index) error after uploading app to pythonanywhere

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I've just uploaded a new web2py app into pythonanywhere, it opens properly in localhost but after uploading it into pythonanywhere it says invalid view (default/index) when i type in the address! I dont understand why, I dont know what i'm doing wrong! If anyone has an idea on how I could rectify this please assist.

Regards

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