how can i create site using my direct admin?

[Ahtapot]

i have my own da
wanna upload files and issue website
tried to find at google and couldnt
maded html file at public_html directory and fail
the file wont show up i always get error
maybe i need to set permissions or change something somewhere?
here it how it looks'
<a href="https://ibb.co/2S49qff"><img src="https://i.ibb.co/2S49qff/da.png" alt="da" border="0"></a>
<a href="https://ibb.co/kJH4XwD"><img src="https://i.ibb.co/kJH4XwD/da1.png" alt="da1" border="0"></a>
cheers