[Koha] record does not exist when clicking title in search results

[Andrew Hartung]

This is the framework error that shows when I set either of them in the 999 
field in the framework to visible and in tab 9. Tried 10 too.
Also clicked visibility in OPAC and Staff.

I have no idea what it is supposed to mean. Copied and pasted it.

"The biblio.biblionumber and biblioitems.biblioitemnumber fields be mapped 
to a MARC subfield,"