Website calculator now blog problems

I recently hired an individual to create a calculator for my website. The calculator has been posted to a certain page on my website via html code. Since the calculator has been added to my website, my blogs seem to be messed up now. The blogs used to be written and displayed in separate paragraphs, but now everything in each blog post is smashed together and does not look right (like a blog that is usually four paragraphs is now one long paragraph with no brakes in between). Any ideas on what I can check to fix it? I have siteground and I know they did some adjustments in the optimizer tool.