Sure! The DOIs in question are as follows:
10.31265/atnrs.863
10.31265/atnrs.864
10.31265/atnrs.865
10.31265/atnrs.866
It should be said that the issue has not been published yet. I have agreed with the editor to publish it officially the 10th of June, but wanted to get the DOIs sorted out. I therefore published it and started the process of registering the DOIs, and then this message appeared for those DOIs. The issue is unpublished right now, but I still hope you will be able to sort out this issue.