We read every piece of feedback, and take your input very seriously.
To see all available qualifiers, see our documentation.
If you're doing something wrong, most probably you'll encounter the "Unknown method" error.
In that case you may be trying:
to call a method that is not in the API;
to use an API type with incompatible session parameters;
to cast a spell that's not in the spellbook.
If you get an "Invalid signature" error, that is most probably a bug in the VAC logic. That shouldn't happen.