Members can start a conversation, get a notification that there is a new message, but when they click to reply any conversation in their inbox = server error.
Member: "I can confirm that you cannot read PMs sent to you by someone else. Nor can I access older PMs that are still in my Inbox. I see both the Inbox notification in the top right, and I can access my Inbox by clicking "Show All..." there, but selecting any "conversation" to actually read leads to: "A server error occurred. Please try again later."
I myself tried to upload an image on the forum and got an error message: "The uploaded file is too large for the server to process." But the file size is : 8.26 KB (8,464 bytes)
Other member wrote: "can't use smilies, also we can't view other member's profile pages."
I read a thread about similar issues but couldn't understand what they did to fix it.
I'm also thinking the hosting may not be able to properly handle or isn't setup to handle for Xenforo.