Please fix the WebDAV bug – PaperShip - Mendeley & Zotero Review

PaperShip is good enough for me to use along with zotero on my iOS device until not long ago. I am using WebDAV from box.com to manage attachments, it was easy to check attachments on iOS, and also convenient to upload attachment to storage. However, this process stop working since last month, no attachments can be uploaded from iOS now. Please fix it, thanks!
Review by Zhangxunck on PaperShip - Mendeley & Zotero.