You can reset the password with the registered E-mail ID
Just go to your Home Url else if you don't know the URL, then visit shoptreeapp.com, click on Login at the top right side, enter the Store Name and click on Login to My Store!.
Click on Forgot Password ? Enter the registered e-mail ID, you will receive a link to reset the password
Go to you Inbox, click on the received link and enter the new password.