Steps to run the project:
Step 1:
open terminal under the folder project

Step 2: (optional)
run the below to open the debug mode
$export FLASK_DEBUG=1

Step 3:
run the below to start the server
$flask run

Step 4:
look for the line:
 * Running on http://127.0.0.1:5000/  (Press CTRL+C to quit)

This line means that the server is running on this IP address.

Step 5:
Open Chrome and visit this IP address
****** remarks ******
Please user Chrome for this project. Thanks.

Step 6:
You can incognito window in Chrome if you want to login the system using a different role.