"The key you provided for file access was invalid. This is usually caused because the file is no longer stored on MediaFire. This occurs when the file is removed by the originating user or MediaFire."
Faraz ki sab kitabon kay links main yeh aa reha hey.
@HumaJaved thanks for informing, I have updated pdf link.
If you see other links not working then kindly use Report to Staff link to inform staff, we'll update InshaALLAH