Como faço para corrigir isso e o cliente foi realmente descontinuado?
O cliente de desktop será descontinuado a partir de 30 de julho de 2016 e não funcionará mais .
Presumivelmente, por causa disso, não está mais disponível para download em seu site.
Veja a postagem no blog do MediaFire abaixo.
Desligando o MediaFire Desktop, novo aplicativo para desktop vindo
May 18, 2016
At MediaFire, we endeavour to always provide the best possible experience for our users, this requires an intense focus on building and supporting the features that can provide the largest benefit to our users. We also recognise that the currently vibrant ecosystem of cloud syncing clients provides many alternative choices for customers looking for that desktop syncing functionality.
As such, we have chosen to discontinue development and support of MediaFire Desktop so that we can focus on the development of a new and improved Desktop app that will make storing and sharing your files with MediaFire even easier.
This discontinuation of MediaFire Desktop will be effective starting on July 30th, 2016. Beyond that date, we will no longer be providing support for MediaFire Desktop which will cease to function.
All files that were synced will continue to be available to manage and share through your account on MediaFire.com and MediaFire’s mobile apps for Android, Blackberry, iPhone, and Windows Phone.
In the meantime, we’re hard at work on further improvements to the MediaFire features that our users have most demanded. We’ll keep you posted on new developments as we get closer to launching!
Fonte Desligando o MediaFire Desktop, novo aplicativo de desktop