App down

I have not had service since the middle of a playoff game last weekend while I was hosting a watch party. I have called customer service. I was on with them for 2.5 hours. We did a full system restart with no answers. They sent a technician who was also stumped. We have used the stream app for 2 years. Every other app on the tv is working. We are left with the same error code and no service. TVAPP-01418

Short of switching providers, our neighbors have Verizon and it's working. What should we do?  None seems equipped or empowered to help us