you need .env file to create like here
#.env file
ENV = 'Development' #or Production
SQLALCHEMY_DATABASE_URI = '' #You need to create a MySQL database and add the here.
#Enter your information for the mail server you want to use
MAIL_SERVER = ''
MAIL_PORT =
MAIL_USERNAME = ''
MAIL_PASSWORD = ''
#You need to have this information from developer.paypal.com to pay via PayPal
PAYPAL_CLIENT_ID = ''
PAYPAL_CLIENT_SECRET = ''