Hi @ajnyga ,
We are testing the OMP 3.5 and installed the latest version of the OMP - CrossRef plugin. It doesn’t work 
Is it supposed to work on 3.5 or not (yet)?
Regards, Primož
I’m interested in this too. Any news?
Regards, Gonzalo
Hello, we are also interested. Is there any news, now that the LTS 3.5 is avalaible? thanks
Hi,
There is a DOI plugin for OMP 3.5.x at
https://github.com/OJSBR/crossref
I made some test registrations on OMP 3.5.0-4 and worked.
Regards
Dr Uğur Koçak
thanks for your answer