There are two instances of covid relieve that you can take that pay up to 14 days of missed work (only your scheduled shifts). Your SM should have contacted you about whether or not you would like to use your pay or not. To my knowledge, since you aren’t the one that’s sick, the company doesn’t allow you to use sick time. So, if you have already used both of your covid catastrophe pay instances or you don’t want to this time (don’t have enough scheduled shifts to warrant using the pay) then you just won’t be paid for any of the scheduled shifts you miss due to the store closure. However, if you weren’t exposed to them in the past (I believe it’s 48 hours) you should be allowed to pick up shifts at other stores. Again though, your SM should have contacted you about this?