No one can help me out?
I can't. I can't even understand your problem. Perhaps you need to try again.
Function calls don't "just partly work". The work. That they do not do what you want does not mean that they don't work.
You need to describe what function call you are talking about, describe what it actually does, describe what you expected it to do, and explain how those two differ AND how you KNOW that they differ.