Here's why:
* "Je vous parle" means "I speak to you" or "I talk to you."
* "Plus" means "more" or "no longer" depending on context.
Therefore, "Je vous parle plus" is an incomplete sentence with no clear meaning.
Here are some possible corrections depending on what you meant:
* "Je ne vous parle plus" (I don't talk to you anymore)
* "Je vous parlerai plus tard" (I'll talk to you later)
* "Je vous parle plus souvent" (I talk to you more often)
Please clarify your intended meaning, and I can help you with the correct French phrase.