Instagram widget – page down

Hi,

I tried using Instagram widget and saw it wasn’t working. I checked your forum and found solution to change class-framework-widgets.php file at my server to this one: https://www.dropbox.com/s/k0te522ilwdcpik/class-framework-widgets.php?dl=0
So I did that… And my page crashed – here it is: http://www.vengatravel.pl.

Any ideas how can I fix that? Thanks

Best, Ewa