unable to download files on ipad pro

Hello All

I am trying to down load files using FltPlan Go app downloaded from the App Store.

I am unable to download any files from that app.

I am able to access the file. It begins the down load for a two or three seconds and then suddenly freezes.

I have tries uninstalling and reinstalling the app.

I tried forced shut down by pressing simultaneously the home and wake up buttons.

None of the above has helped

iPad Pro 10.5

256 GB

IOS 11.4.1

Model MPHK2CL\A

Sl # DM***PDY

WiFi Network - Rogers - 5G

There is no warning or caution notice

This problem has been going on for a while. I have done my trouble shooting with Rogers and FltPlan Go and they both have diverted the problem solving to Apple.

So, please help

Thanks very much.

I think it is probably in the iPad setting. I have erased all content and setting including apps from the iPad and reinstalled everything a fresh, but his has not resolved the issue.