App cant download

[Ullyott]

Please help,

I am trying to install an app onto my macbook pro. The installation process get to around 93% complete then an error message appear saying "The application could not be downloaded. UNTRUSTED_CERT_TITLE" what does this mean?

Thankyou

Ullyott

 

[old-wiz]

what app are you trying to download and where are you trying to download it from? the error message suggests it's a hacked app or trojan