If you don’t know How to login Nydoz Hosting Plesk Control Panel then you can Check this articles.
After Opening Hosting Plesk Control Panel.
Step 1: Click on Domains Option in Left sidebar of Page.
Step 2: you can Choose your domain from the list and click it.
Step 3: After Choose domain then Click on WordPress of right sidebar.
Step 4: Click on Setup.
Step 5: If you want to See your Current Password then click on Seen Button.
Step 6: If you want to Change your WordPress Password, enter your Password in New Password Box.