Hi @Tom4843
Checking whether the area you want to operate your STR business in has STR regulations is a key step every host should take when setting up their business.
It sounds like you are lucky that your local government haven't immediately slapped a large fine on you for not having an STR licence.
1. I am sure you've done this already but the first thing you need to do is don't take any more bookings . Now you are on notice they are much more likely to fine you .
2. read through the STR regulations on your local government website to see if you are eligible to apply.
If it's a yes that's good news. If not - you may not be able to operate - or may need to operate in a different way.
I am sure the letter you were given tells you what to do.