I would have to first ask how much did you feed? You mention 'some'.
Origen is a great brand, ingredients are good. Treats are 5 calories each and will be rich as they are grain free.
Before reporting to the company, is this user error with too much of a good thing with something new? If your dog is not used to the richness of grain free food items, a few too many could cause digestive upsets. I think more info is needed. If you only gave 1 or 2 and see digestive upsets, yes, I would call the company. If you gave more, I might still call the company but it also may have been too much of a good thing. I always test new items, going slow to introduce anything new.
I feed Origen to my cats but feed my Shelties Fromm. I would have no issue giving that to my dogs but it would be only a treat or two - I like low calorie treat items so I can give more items - I watch my dogs waistlines - habit from our days with doxies.
I hope your pupper is okay. If loose stool, you can go with a bland diet and slowly add in canned plain pumpkin to stiffen up stool. There are also aids on the market to stiffen up the stool and get the gut back in order; Pro-Pectalin tablets are one such item but if your pupper is really sick, a vet visit may be in order. Watch for signs of dehydration; check the nose and gums.