Learn English – Was to be or was to have been

The question is broad and depending on the context, the meaning of those sentences drastically change. Since the question is broad, I'll answer that way.

Both the sentences broadly mean the same - you (at some point in time) were present at that place. However, a subtle difference is...

I was there - merely talks about the past event that you were present at that place.
I have been there - talks about the past event of you being there but also emphasize that that event has something to do in the present talk/scenario. The current scenario/talk could be the result of you being there.

Firstly: Both of them mean essentially the same thing. He had a problem, in the past. He does not have the problem now. The difference is in how the time of the problem relates to other time periods.

"Had" is called the simple past. He had a problem, then the problem went away. This is very neutral on things like how long the problem was there, or when the problem happened, compared to other things the speaker says next.

"Was having" is called the past continuous. Anything the speaker says next is likely to be about things that happened at the same time as the problem.

Secondly: Both of your example sentences should say "the same problem as", not "same problem like". "The same [X] as" is the standard English structure here. (I used it myself in the previous paragraph!)