Online store items showing as 'Published site not found. Reason: no data'

[LivNDS]

We have had our online shop running for a while with no issues. Overnight several of the products pictures are no longer loading and when attempting to add the item to the cart a message saying 'Published site not found. Reason: no data' shows.

Any ideas on how to remedy this? We are in lockdown and our actual shop front is closed so really need this to be working correctly.

[MJD]

Have you tried unpublishing and republishing the site @LivNDS?