In the login screen, if an invalid email address and/or password is entered, the following message is displayed:
Username or passwrod is incorrect
It should say "password" rather than "passwrod".
Also, it should refer to "email" rather than "username" since we're asking users to log in with their email address.
I suggest the following:
Email address or password is incorrect
In the login screen, if an invalid email address and/or password is entered, the following message is displayed: