I installed Zotero6 on my computer, synced the library using webdav, and then I upgraded Zotero7, added plugins, waited for everything to be ready, and found that the middle panel was blank and the categories on the left side were displayed correctly, literature numbers is also shown, but the contents can not be viewed, the middle entry is blank. Please HELP me!
https://s3.amazonaws.com/zotero.org/images/forums/u10083970/22zwasm6izuj40gmh6m0.png