I noticed that this support site was down this morning, so I opened a ticket with iweb.com and they replied very fast and said that the power supply needed to be replaced.
As you can see they have replaced it really fast.
The only thing I had to do was to manually start one process: php-fpm which for some reasons did not start automatically. I was away from my computer for most of the day, that's why it took long.
This is just another proof to me that iweb.com is a pretty good host, seeing how quickly they fixed a server.