I upgraded my version of ver 9 to the latest one and it has totally wrecked up months of work I maintain the writing and integrity of it in the draft but when I preview the site it is a total mess and I can't fix it The site loses its logo, it resembles draft paper I was only using the previous version with no problems a few minutes before I changed over then big problems so it is the software not my computer How can i get months of work back and can I revert to the previous model

I wish I had never upgraded and wil certainly not be upgraded again