I took a very brief look. To me, it looks like your "Relationships" between the Entities aren't acting properly. Usually, on the Publication page, the *Person* Entity (for the related Authors) will be hyperlinked. Yours is *not* hyperlinked. This implies to me that the relationship between your Publication and Person is somehow not working properly. You could try to remove that relationship and recreate it. You also could try reindexing (./dspace index-discovery -b).
I'd also recommend looking for possible errors that may be occurring in your backend logs or in the User Interface layer. See our troubleshooting guide for details:
https://wiki.lyrasis.org/display/DSPACE/Troubleshoot+an+error#Troubleshootanerror-DSpace7.x(orabove)Hopefully that helps give you some clues,