Decrease in sales and in store sessions plus ads to cart doesn’t show in ads manager

[Mo88]

I have just started dropshipping have two stores. They started pretty good. Although I spent a lot of money trying to figure out fb adds but sales were coming.

Recently, I have been facing issues with my campaigns, number of visitors are low, the Ad manager doesn’t record the ads to cart. I tried fixing it not sure how to fix. It’s a little frustrating from having sales to no sales and not much in store sessions ... anyone else have these issues ?