[gxdata]

v2.43 BETA has been available a while - since 3Oct2016. Also, may be worth installing a later .NET version? v4.5 ?

Actually, I have a lot of problems with faulty iView programs (not 'Ripper faults; and mainly News-type). And have found that when I get the type of .NET error you are seeing, I close 'Ripper, and load it again. Try that.
Also, ffmpeg doesn't like to resume (rtmpdump was very tolerant of internet flakiness).