Hi, it's probably because the HTTP port was occupied.
You can share with us(firstname.lastname@example.org) your Oculus registered email. We'll add you to our beta channel and offer you a fix Quest version 1.1.0(556) to troubleshoot.
What's more, please click the WeTransfer link to download SKYBOX Windows Client (fix version 479) on your pc: https://we.tl/t-eKvqUw5Ily
You should be able to play videos via AirScreen when using both fix version on your Quest and pc.
What's more, you can find the log files in C:\Users<Your Username>\AppData\Roaming\SKYBOX\logs.