I can make a database backup and my server also has a full account backup, but I have never used that before. I am like dmx as I do not have a mirror site - unfortunately. As I am writing this, I am realizing that my server has already done a full account backup just hours ago - heck - I was not thinking to download the full account backup before I did the Xenforo upgrade.
So, Ozzy, just a question. If I download my database, and then if something goes crazy, all I have to do is re-upload the database and all will be well or at least put it back the way it was before your 2.1.28 ?
It has been a long time since I have managed mySQL and databases.