MinCart ‑ Order limits

thank you very much to provide this app for sellers as me.i have install the app yesterday and every thing looks fine.but this morning while i open my shopify and try it i was very sad.becsuse the check out button is not working anymore.i am not sure if its a problem because of this app or not.i tried to email with the service hope my problem will be fix asap.i really need the moq set system.tks a lot.