When PLA is exposed to moisture for too long it gets brittle.. The roll is bad, if you can contact the manufacture they will probably replace it. All filament absorbs moisture and the results are different depending on what material it is, PLA get brittle, petg, abs and nylon get full of craters where the moisture boils out when melted

https://3dsolved.com/why-does-pla-fi...%20recommended.
https://www.bcn3d.com/the-causes-of-...-pla-filament/