Trouble configuring upcoming-media-card + sonarr

Hello,
I have a sonarr and radarr, and I can’t seem to figure out how to create the component for the sonarr’s upcoming media…
I didn’t use HACS, and I followed everything from these guides:

and all I get is this:
image

I really don’t know what I am missing…
I tried to find more guides on the web, youtube… tried to find answers in this forum, but the threads didn’t help / were old

please help

Edit:
I changed in the resource tab - config/www/ → /local/
and now I don’t get an error