NetShort Shows “Unstable Connection” and Won’t Play Videos

My NetShort service is not working. I subscribed at 1:00 a.m. this morning, and since then I have been unable to download or play any content. The app keeps showing messages such as “Unstable connection” and “Download pending.”
I have tried every troubleshooting method I could find, but nothing has worked. I also contacted NetShort support, but I have not received a response yet.