All take a look at this thread https://community.nowtv.com/t5/Content-Issues-Missing-Episodes/Law-and-Order-SVU-seasons-8-amp-amp-9...
There is a known issue across several shows where episodes or even seasons are unplayable. The Now TV member of staff has posted and indicated that they are unsure how much is effected but are working on it.
Jump onto Live chat to get the episodes added to their growing list
1. NOW TV account & payments
2. Cancelling or renewing NOW TV Passes
3. Drop down 'How to get in touch'
4. Live Chat
FYI that I do not work for NOW, just a NOW customer trying to help