Those are pretty obviously small seedlings...

Okay I bet you got the Miracle Grow Organic. It's not great for seedlings because it's got fertilizer in it.

Make sure your pots are REALLY well drained- IF they have a built-in drip tray, remove it. Extra holes never hurt either. And then flush the soil with tap water adjusted to pH 6.7.

Afterwards, keep good air flow and light and if the seedlings are saveable, that will do it.