The popup when you first open the site is downright not a good idea. Ask around if you want to know how folk feel about that.
2. https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.frontpile.com%2F coughs up too many errors.
This can lead folk that check to think the web master is new or unprofessional. Think of this like your business card. You don't hand out cards that are dirty, worn or with errors. Unless you are a gardener?
3. A quick look at the site left me asking what is this site about. It wasn't clear after checking it out for a minute. Folk are not going to come back if you don't make it clear what your site is about.