Site crashes whenever I am adjusting themes

Anyone ever experience having their sites go down for a few mins when adjusting themes?

E.G. When in my admin panel and previewing any theme changes it works fine for a while but after a few mins it seems to knock down my site completely. This happens when I’m doing a live preview.

If I’m just surfing my site there doesn’t seem to be any issues.

I currently have an open ticket with tech support but they thought they had it fixed.

**Update It appears to be crashing even when I’m not in themes now

Solved by the techs. Had to do with the apache on their end