Sister Act 2: Back in the Habit is quite an old movie and Monolith is low rate movie so IMHO they wouldn't be added or updated because of lack of the good torrents.

Firstly, simply move your downloaded movies to some local folder. Secondly, go to https://getpopcorntime.is/ ans install actual valid versіоns.

Anyway try to specify exact PT versіоn, MacOS versіоn and screen resolutіоn. Also try to switch between resolutіоn to see if it has some influence.

I checked on Mac 10.14.2 and everything works just fine. Maybe changing torrents in the list would help you. BTW you mentioned server/network fail so can you provide some screenshots? Also specify your PT version.

http://lmgtfy.com/?q=mx+player+sync+subtitles

http://lmgtfy.com/?q=data+recovery+samsung+galaxy+a7

If you still have your PT installation file (.exe or .apk etc.) simply run it again. Otherwise you probably need to search the web for the earlier builds.

Are you talking about pt or some vpn?

It was from the beginning or it starts some time ago?
If 1 - probably customized OSX has some issues with PT.
If 2 - Just disable vpn alert in PT settings and tap continue anyway (especially if you have any vpn).

Also you can clear app cache and data, then update PT to the latest version 3.2.2

Specify more details, e.g. PT version, your devise and its OS version