Crossreff deposit problem

I couldn’t find an answer to my problem. If It could be a similar subject about the issue, I am sorry that. I have a problem with import/export with Crossref. When I tried an article to deposit, a Notification window pop up:

“Registration was not fully successful! The DOI registration server returned an error.”

Following that, I checked the error log, I saw a problem related to the Plugin as seen below. How can solve the problem?

PHP Warning: DOMDocument::loadXML(): Empty string supplied as input in /home/jstem/public_html/plugins/importexport/crossref/ on line 308

Hi @gokhankaya,

What OJS version are you using?
If you try to only export that submission DOI, do you get any (validation) errors?


I used OJS version. Yes, I had a problem when I would like to export that submission DOI. However, I solved my problem, the problem emerged from my Crossref sponsor due to configuration settings.