I'd imagine it's grounded until SpaceX can at least demonstrate the next launchpad won't rain down on their neighbors.

There seems to be a lot of things that went wrong in this launch, and the FAA will want to see those issues investigated, from engine failures at launch, to the disintegrating launchpad, all the way to a possible malfunction of the flight termination system, because it seems the rocket disassembled itself before the FTS could do its job in a controlled way.