Gap in AP Invoice Sequences - How can we correct that?

Summary:

We had to recreate a sequence and as a result we had a gap in voucher numbering. Now we have to fill this hole.

Content (please ensure you mask any confidential information):

We thought that in order to fill the gap it is necessary to create a new sequence with manual type and then deactivate after filling the gap.
to do this, is it necessary to create a new category ?
Because we cannot use the same document category that is present in the sequence "Gapless".

What consequences can we have? Do you have any other ideas for fill the gap?