Well, I have been struggling with this for a while now. My friend wrote a piece of documentation for his software, in which he included this sentence:
This repository contains [software name] API documentation. If you need help or having trouble please contact us at [...].
According to me, the second sentence is not correct grammatically. I said that he should change it to "If you need help or you are having trouble [...]", but he keeps arguing with me about it and clearly does not want to change it.
Hence my question - which form is correct (or are both of them correct, or even none of them are correct)?