How to increase security of a Laravel site [closed]

I am a beginner in Laravel. I have a live project(ex:https://seniorcitizenhospital.com/) made with Laravel.

while I use site::https://seniorcitizenhospital.com/ in google search engine it gives me a search result with some Chinese language(red color) like below image

But there is no use any other language this site. So is this one kind of malware or hacking issue? If something like that how could I protect my site from these issues?

Anybody Help Please? Thanks in advance

via Chebli Mohamed