Your sentence is not complete enough. 钱不是万能的，但没钱是万万不能的。 （Money can't do everything.But without money, nothing can be done.） This is an exaggerated expression.People say they have no money.It's a self-mockery。 But I advise you not to use this sentence.People will think you are very old-fashioned。

同意Justin的建议

也许你想表达的是:钱不是万能的，但没有钱是万万不能的。 Maybe you mean: Money is not everything,but without it you can do nothing.