theme error ?!

[EsmailELBoBDev2]

when i try to change theme to Elegant (https://registry.jsonresume.org/esmailelbobdev2?theme=Elegant) i get Error: could not handle the request but when i change any other themes it work fine

[EsmailELBoBDev2]

and when i use github theme it take too much time to reload (and im sure its not from my net speed)

[milovanderlinden]

I just tried to reproduce, but the error no longer happens. I think this issue can be closed, but perhaps someone can shed a light on why the error is gone.