SnippetMaster requires the Zend Optimizer or Ioncube Loaders to be working on your server.
Don't worry, if you are using a good quality web hosting provider then they will already either Zend Optimizer or Ioncube Loader (or possibly even both!) installed and working on your server. (Both Zend Optimizer and Ioncube Loaders are considered industry standards, and any decent web host will have them installed.)
However, if your web hosting provider is not willing or able to allow Zend or Ioncube-encoded PHP software (such as SnippetMaster) to work on your server, then I highly recommend finding a better hosting provider right away that actually knows what they're doing and cares about your business. (Let me know if you would like a good recommendation.)
If you run into any Ioncube Loader problems and need help installing SnippetMaster, please be sure to request a free installation.