If you think she now has financial problems, what is your evidence? With specific source and date, of course. She had a temporary crunch, which, from my reading, is now over.
She has ample resources to defend her "firewall" in Texas, Ohio, and Pennsylvania.
It may not be successful--especially since she now needs to more than win over Obama in those states--it needs to be a convincing win.
But it will not be a lack of cash that defeats her.