do you have a paid cloud plan?
then try to open your box
https://1b.app/ua/billing/then Actions - Backups - Expand.
If your own server - ask the administrator to restore the data.
in both cases, all entries in the database for the current day will be lost.
If you need to restore only Workflow - the Admin can write here, he will offer a paid restoration option (as a rule, it takes 1-2 hours of work)