Error when inputting live weather location

[helsatown]

Whenever I try to put in my location for the live weather function of this extension, I can an error message that simply reads "an unknown error has occurred."

[PikaDude]

Have you tried entering any other location? Are you able to provide the details of what you're entering that causes the error?

[dirtyZiu]

I had the same problem, when I try a zip code in US works... but when I try a zip code in CL (Chile), it shows "an unknown error has occurred."

[helsatown]

I'm the Cumbria in the UK and any postcodes I try around my area throw up an error message

[IneOtherGuys]

Failing for Argentina (1426, AR) as well. If this is going to work for the US only, it should probably be mentioned.
Error when accesing https://acmusicext.com/api/weather-v1/AR/1426 is {"code":500} (so, it's not a City Not Found error)