Welcome to permies Nicole! I'm not sure what happy frog is, but I've had the same thing happen with bulk bags that I used as a temporary compost bin (lesson learnt there!)
Ary had a similar issue here:
https://permies.com/t/207966/Shattered-Plastics-Soil and there are various suggestions given for cleaning up the soil and separating out the plastic. I think removing as much as you can will be a worthwhile first step.