Fixing alaroosa.com website

I am looking for a freelancer to help me with website maintenance for alaroosa.com and alaroosa.com/admin. Specifically, I'm looking for someone who can diagnose and fix any existing bugs. I have decided that I do not need assistance with uploading content, nor do I require a custom design. All I ask is that the website is kept in top-notch condition and runs efficiently.
The website was working perfectly, but suddenly stopped for unknown reasons.
if I am not mistaken, the website built with Laravel framework.