Since this seems to be a common issue people are having right now...
If you are using a card type with no mapped fields, the card creator should display a notification saying hey your excellence, "maybe you want to pick a different card type such as Migaku <Language> or here is how you can setup your own card type."
I have the Extension installed in a Windows 7 VirtualBox VM, so I can pull it up when I help people in the Discord, however I constantly need to re-login after unfreezing a suspended session, which is highly annoying.
Timestamps seem a bit off to me. They go into the future. ^_^;
Also can we move the "dark" mode button to the top bar on the main website, you have to blind yourself by scrolling to the bottom to get to it, provided you can find it.
Also, no dark button on the forums. Would be nice to have it here as well, perhaps in the profile drop down menu, if there isn't enough space otherwise.