What if your online store which cannot fulfil orders due to the shutdown ? You should tell Google about it and make sure that it does not kill your SEO or get you downgraded in some way. How to begin ?
Tell your customers that you are not available until this situation is handled
A banner or a popup would do.
Make sure that you modify structured data accordingly
You can set product availability in the structured data and also in Local business structured data
Disable cart option so that people can't checkout.
Use search console and ask Google to recrawl a small no. of pages
You can disable your whole website.
This is perhaps most easy for a non-technical person to do. But Google says Not recommended__. But if you insist, and want to go completely offline for up to 2 days make sure that those pages return 503 HTTP result code. If it is for a longer period of time, try 200 HTTP status code.
There is also an option using which you can temporarily remove your website from Google search.
Google does not want you to kill your website altogether. Also, you can use Google to adjust your business hour listing. Google recommends virtual events, work from home etc. There are some resources which you can use as work from home tips for small business.
Using Search Console, you can tell Google to crawl less during this period.
