PLEASE CHANGE/UPDATE YOUR RATING, whether your Website is recovered or not.
This developer must have spent several months perfecting his plug-in, offered it for FREE, just to see you dump 1-star on him. Because you failed to have a proper back-up plan in place?
I build all my client Websites on VPS, only. I monitor all their assets and daily backups. Sure I charge a premium, but what happened to you, does not happen to any of my client Websites.
Web host are not responsible for backing up your Website, especially if you’re on a shared hosting environment – their margins are too skinny to allocate resources to monitor one sector of a server hard drive.
Handle your files and databases, or an incident like this will happen again.