I have the following function in a file myIEEEtran.bst

FUNCTION {book}
{ std.status.using.comma
  start.entry
  if.url.alt.interword.spacing
  author empty$
    { format.editors "author and editor" output.warn }
    { format.authors output.nonnull }
  if$
  name.or.dash
  format.book.title.edition "Book" output
  format.series output
  author empty$
    { skip$ }
    { format.editors output }
  if$
  format.address.publisher.date output
  format.volume output
  format.number output
  format.pages output
  format.isbn output        %% GQMJr
  %format.url output
  fin.entry
  if.url.std.interword.spacing
}

And the following entry in a library.bib file

@book{Dresch2015,
   title = {Design Science Research: A Method for Science and Technology Advancement},
   author = {Aline Dresch and Daniel Pacheco Lacerda and José Antônio Valle Antunes},
   doi = {10.1007/978-3-319-07374-3},
   isbn = {9783319073743},
   pages = {1-161},
   edition = {1st},
   publisher = {Springer},
   year = {2015},
}

When I try to compile my latex document using latexmk (that calls bibtex to build references) I get the following error:

ptr=1, stack=
Springer, 2015
---the literal stack isn't empty for entry Dresch2015
while executing---line 2478 of file template-ubi/myIEEEtran.bst

I searched and tried everything that I could but without success.