Trying to install the app, getting error: Failed to Load Apps

[mealeyst]

I attempted to add the graphql playground to two of my spaces, and I am simply getting an error message: "Failed to Load Apps."

Checking the console and network tabs it appears it might be a Server Issue:

[mirsahib]

Is this repository still active? The issue persists even after more than a year, and there hasn't been a solution yet.