If I open any application, it says: "The document "hypercard.zip" could not be opened, because the application program that created it could not be found. Could not find a translation extension with appropriate translators."
The Hypercard is some sort of a "library" tool that enables you to run application. If it's not installed properly, SheeShaver will not load the applications you want. Some users said that Basilik is better than SheepShaver when it comes to emulation, but if you can get Hypercard installed, then it will work normally without many problems. You will need version 2.1 68K to be able to run applications inside SheepShaver. Use Google Search to find a downloadable version.