table number already existing, but it is not true.

[camale82]

Good morning to all
I am looking to rename a table in revit giving a new table number, but when the check tells me that the number is already extinguishing, and to give a unique number, so far it would be all right, but in my case in the project browser I have no table with that number already present, and I have no filters that could hide it.
Has anyone happened yet? How did you solve this?
thanks in advance

 

[Tristan]

made an abaco/list boards to check for "cadaveri"?

 

[camale82]

I solved it just now.
It was a place mark table, which never appears in the project browser, and in the boards abacus I did not see it because it did not correspond to the filters, removed the filter came out, so I erased it and everything returned appropriate.