C289 What's the matter

I followed the waiter into the hall. There was a smell of erosion in my face, and the rumbling music made my body tremble. The lights in the field flickered, the constantly changing lights swaying on top of everyone's heads. Faint smoke continuously puffed out from a few vents, turning this thousand square meter field into a few levels of fantasy.

The waiter led me to a booth at the back