problems when I try to run my project in the droplet

first of all, im making a retail website using react. I have almost everything down to complete the website in terms of coding. i shifted all my files over to the droplet (if its important to know how or what way i used, then ask me). Now, there’s a server and a client folder that i use to run the website.

• to run the client: npm start
• to run the server: node index.js

But theres a problem when i run the client…this shows up in the droplet:
"root@snagged-it:~/snagged-it/snagged-it# npm start

• snagged-it@0.1.0 start

• react-scripts start

sh: 1: react-scripts: not found"

snagged-it is just the name of my client folder. ive been trying to figure out the solution to this for so long, im hoping someone has the answer.

heres the link to the code: www.digitalocean.com all my files are in the “snagged-it/src” folder. snagged-it is my client folder, while index.js is in my server folder.