The website needs to be his priority.
You have shared a link in here and constantly say it's different, it's better, it's not a true reflection.
The website is awful. No one would book based on that and then if the guest house is genuinely better than what is shown he is losing potential customers.
He needs the website, Facebook, etc all working and now. It's Easter weekend, schools have been off and people may have looked and scrolled on by.
As the kids go back retired people are looking for a few days away as the sun starts to come out. He is literally losing customers every day the website it poor
The first step of getting any booking is online. People don't turn up looking for vacancies any more
We watch the Hotel Inspector.too. lots of ideas he could take from that about making rooms more attractive, making money with a coffee machine.
I wouldn't consider a monitor for children in bed and parents downstairs. Does he have a license to sell alcohol? I don't know any parent that would leave their kids in this way.
Some retired people like entertainment - maybe a bingo or a quiz or similar. If they are traveling alone they need company.