Of course there's no single universal solution. However, there are a few things you could try - only one change at a time and preferably in this order:
- Change the bidding strategy (We recommend maximizing the budget on clicks or sales.)
- Raise the standard bid
- Raise the risk level
- Raise the budget
- Turn off the smart budget
However, if impressions are at 0, a technical error might be occurring. Simply send us a quick service request and we'll take care of it.