Can I appeal the decision?

You can only appeal based on factual errors, for example, “There is no business plan”.  You can appeal: “See business plan on page X in the proposal”), but you can’t appeal the comments of the evaluators or their expertise, for example: “The suggested project is not beyond the state-of-the-art” or “the project is innovative”. Consider that the appeal process could be long, and the appeal success rates are low.