apps broken, wont open after 11.5 update

I also have a ROKU tv(Sharp) that after the last software update, will not play any app/channel content,

we tried all the troubleshooting steps, the internet is fine, the tv is working, and the apps work on other devices. I contacted the ROKU customer support chat center and after an hour plus of having me do all of the steps I had already done, plus a factory reset the issue was not resolved. They actually told me to contact them again in 24 hours to see if they had come up with any solutions! Meanwhile, I have a living room television I can't watch anything on! If anybody knows how to fix this problem, I would appreciate it if you would share this information.