My 2 order cancel due to that my account down. what i do.
Unfortunately, when orders get cancelled, it will affect your completion rate and also where you are placed on the pages. You may see less impressions or clicks until you can get more orders and get your completion rate back up.
Only thing you can do is receive more orders. There are plenty of posts in the forum discussing how and where to find buyers. Do a search - it’s the magnifying icon in the upper right hand corner of the page.