What is the way to do a mockup using illustrator? I'm unable to make mockups?

[Chroma Genius]

I have attached 3 screenshots as well for the same wherein I have selected 1 Image which is my candle and 1 vector group which is my Label.

Complete VIew:

Error:

Properties:

[Monika Gause]

You have to do it with the candles one by one. And also there seems to be something in the label that is either a pixel image or not embedded. You need to embed it. Pixel images are not possible at all in the label.