Function not found...

[eugriner]

Greetings!

I ran:

git clone https://github.com/netlify-templates/astro-toolbox 
npm install
ntl dev

When I submit the form I get the message

Function not found...

The URL is

http://localhost:8888/success

and the console message is:

 ›   Warning: Missing form submission function handler
Request from ::1: POST /success
Response with status 404 in 2 ms.
 ›   Warning: Missing form submission function handler
Request from ::1: POST /success.html
Response with status 404 in 1 ms.
 ›   Warning: Missing form submission function handler
Request from ::1: POST /success.htm
Response with status 404 in 0 ms.
 ›   Warning: Missing form submission function handler
Request from ::1: POST /success/index.html
Response with status 404 in 1 ms.
 ›   Warning: Missing form submission function handler
Request from ::1: POST /success/index.htm
Response with status 404 in 1 ms.

node -v
v18.18.0

Any tips?