When I can't watch ads

Lately, maybe because of the bad connection, there are times when I can't watch ads and it shows 'No ads available at the moment'. So I pressed cancel thinking 'Well, I'll just give up on the double points chance this time~', and then the ad started playing lol So, I didn't give up and pressed the ad watch button twice, and this time I was able to watch the ad lol So today I thought that when I have the time, I shouldn't give up and keep trying to watch ads~ lol(*´ 艸｀)