Don't do that.
Vinyl, after cutting, will tend to repair itself along the cut lines (re-bond/re-adhere). This makes it unsuitable for having it sit like that for any protracted length of time. The rule is: Cut & weed in proximity.
As for weeding it and then not app-taping it? Yeah, that'll work, but you have to exercise extreme care in handling/storing, because the vinyl bits are now exposed and can more easily become dislodged from the backing paper as you stack the sheets.
Best thing to do is figure out how to increase your sales and not have extra stuff lying around. Get a grip on why things are 'slow' now and work harder to overcome the lack of orders. Promote, Promote, Promote --- that is the way to do business in the era of Covid19.