Database connection problems

Over the last several weeks, I’ve had my database crash 4 times. My host, Dreamhost has restored a previous version which seems to fix the problem, but then it will happen again later.
I have no idea what is causing it.
It was suggested that the Enfold theme might be clashing with one of my plugins but I don’t know how to determine which one.
Have you experienced any issues?
My site is down right now as we speak and I’m frantically trying to fix it.