You can change your password for security reasons or reset it if you forget it. All you need to do is to click on forget password as shown below:
You’ll then be asked to add your email address and a link will be sent to you. If you don’t get an email or you can't see it :
Check your Spam or Bulk Mail folders.
If you are using Gmail check the emails in promotions.
The link sent to you will direct you to the reset password page in knawat where you can create a new password for your account.