Elaborate your question please? Which campaign type you are running? Is your ads approved? Is the campaign new? Or It's a old campaign and suddenly you are not seeing any stats?
Did you find any helpful responses or answers to your query ? If yes, please mark it as the ‘Best Answer’
If you have double-checked to make certain your ads are approved, there are no billing issues, and nothing has happened like your campaign reaching the "end date" that you set when you created it, then this is probably just a glitch in the data posting cycle.
I would suggest waiting 24 hours--the data will show up once the "glitch" has been fixed.
Google AdWords Top Contributor