The support address can be found under "Support FAQ".

E2000 is an error issued by the driver of your 3D card. It totally depends on the driver - in this case it's probably that the 3D card can not build certain textures due to a too high antialiasing setting. This error will not be issued in the release version, but the texture will there not be created, either.

I don't know the other error, though, so for that reason we'd like to look into your project when you send it to the support.