More likely there is some internal damage which resulted in the yeast and nutrients mixing. The fact that the package is inflated means the yeast is alive. Standard procedure with questionable yeast is to make a starter. That's faster and cheaper than buying new yeast.
NB might replace the yeast. I'd suggest contacting them.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk