Is it necessary that only a business website can produce money?

You don't need a website to have a business, but if you have one that's better and you will be your boss.

kadang perlu juga sebuah ebsite

Hey there. No you do not need a business website to make money, however your ability ti make any significant money will be limited.

That said, what you can do is build a site and place a Paypal "Donate" button on it to take donations. Many people do that. You will need, however, to "offer" something of value on your personal site that would be a motivation for people to donate.

Examples would be personal musings people find interesting and informative or if it's for a good cause.

Just go into

Nope. It's not necessary to have a business website to earn money. There are scores of examples whereby non-business websites have earned their owners a lot of money.

aku pikir bukan sepenuhnya penting

I think you don't need it, my friend

No you don't need it. There are many free trusted sites.

You don't necessarily need a business to earn money online. Joining credible and legal businesses like SFI where you promote, sponsor referrals and product advertising can help you succeed and earn online!

I don't really think having a business website is necessary for making money, though it does help.

You necessarily do not need to have a business to put up a website. You can put up a website to promote other people's products, to provide information, or to advertise yourself and still make money with it. The list is endless but you just have to make sure that you consider what you have interest in and how to market it before putting up the website.
All the best.