Questions & Answers about zhèlǐ bù cúnzài zhège wèntí.
The sentence is built like this:
- 这里 = here / in this place
- 不 = not
- 存在 = exist
- 这个问题 = this problem / this issue
So the overall pattern is:
A very literal gloss is:
- Here does not exist this problem.
That sounds awkward in English, but it matches the Chinese word order pretty well.
Chinese very often puts time or place information near the front of the sentence to set the scene first.
So 这里 tells you the location frame before the main statement is made:
- 这里 → as for here / in this place
- 不存在这个问题 → this problem does not exist
This does not have to be the grammatical subject in the English sense. It is more like a setting or topic.