If a table does not load, please go to edit layout and check that the filter applied to the table is still relevant.
Here I have a status field in my Airtable base.
In my edit layout, I have applied a filter to the status field.
I then decide to change the field to another field type.
The table does not load because the field type has changed, I need to go into edit layout and check reset the filter as it will now be empty.