You can reset your Plesk panel account password through the Client Area.
Reset Plesk password
- Login to your account at the Client Area
- From Home page, click on Cloud Services.
- From the list of My Products & Services, click on the hosting plan which you want to change the password of.
- On the Product Managing page, under the Actions section in the side menu, click on Change Password.
- Under Change Password, enter you New Password in the specified box, and re-enter the same new password in the Confirm New Password box, then click on Save Changes.