I think I found the issue. I had included the sentence "proxy": "localhost:5000" inside the package.json belonging to the server, and not inside the package.json of the client(react app). May be that one the problem Thiago? Because now I´m not getting any errors.
It was showing this error inside Chrome Devtools (where localhost:3000).
Are you able to insert data through an HTTP client like Insomnia or postman?
I think I found the issue. I had included the sentence "proxy": "localhost:5000" inside the package.json belonging to the server, and not inside the package.json of the client(react app). May be that one the problem Thiago? Because now I´m not getting any errors.
That was it, for sure Oscar.
Let me know if you have any other questions! :)