Hi All,
I want to report that I got success by replacing the old code of CrossrefReferenceLinking plugin with that branch from Github. The link is here.
But when the ORCID profile plugin is active and ORCID iD field is not empty, I get the Error: cvc-complex-type.2.4.d error that is discussed here. When I disable the ORCID profile plugin, and remove ORCID iD values from contributers, I can register new DOI.
I just registered a new DOI a few minutes ago, and it is being successfully resolved by doi.org.
Regards,