m4nuelgraph

But it seems that your hosting support are trying to fix your site right now.
So i can see its content.

It goes up and down. They are not working on the site right now

Ask them to check the SSL configuration, and also about the site going completely offline (if not caused by a plugin)

I will keep in mind about asking them to check the SSL configuration next time I contact support which is going to be after I get enough insight from the people replying to this topic

From your descriptions, it looks like those issues are beyond the scope of WordPress. I strongly suggest you to get in touch again with your hosting tech support, since it looks like your server has issues.

Just what I was thinking. However, my hosting provider raised the memory of my hosting. The problem persists.