Looks like CC3+ isn't finding your data directory for some reason. There should be a file called @.ini in your installation directory (c:\program files (x86)\ProFantasy\CC3Plus) that contain the path to your data directory. Check that this is correct.

I use a projector connected to a computer running a client in player mode. It's easy enough for players to tell me where to move when we are meeting in person anyway (laser pointers are great). I turn on the view following, so the player client on the projector always show the same area as I am looking on in my client (Of course, what the player client actually shows is limited by light, vision ranges, and fog of war of course.)

But most players do bring a laptop. Easier to keep character sheets in an electronic format, and when everyone uses a shared OneNote notebook for note taking, it is easy for the players to keep common notes. So players connect to the vtt if they desire, but it isn't a requirement since we have the projector.

Sometimes when you install the latest update, you may see this error message:

As long as the error message is about the Fcw32.mac file as in the image above, you can safely click ignore here. The error message happened because it failed to make a backup copy of your old macro file. Unless you have manually modified this file (if you are unsure, you haven't), clicking ignore is 100% safe since all that will happen is that the old file is overwritten with a fresh one.

They are cumulative, you only need to install the latest one.

Drawing tools select their own sheet by default, so users won't have to manually set the sheet before using a tool (Nor needing to know which sheet to pick).

You can manually change the sheet of any entity using either :CC2MCHANGE: or Move to Sheet (right click :CC2SHEETS:)