Contributor Data Medra

From the OJs we use the plugin to register the DOIs in Medra. Almost all the correct information is passed except for the main author who is listed as “other contributors”. Do you know if there is anything that can be done to fix this?

In cases where we have bibliographic references, the registration is not carried out and we are forced to register without references and later add the references to the article. Could it be that the references are not entered correctly? What is the format?

OJS 3.3.0-14