We use OJS188.8.131.52. We have assigned DOI numbers to our articles for the first time. We are members of CrossRef. First set of DOIs were assigned 5 days back, and the second set of DOI were assigned yesterday (as we released 2 issues on these days). (see the two screenshots). The visitors to our website can’t access the content through DOI link.
When i press ‘Deposit’ in CrossRef XML Tool, it shown “Registration was not successful! The DOI registration server returned an error: ‘No response from server.’.”
How to solve this problem?