Hey, we will need to know which password you required. For example is this the PSK used to access your SSID or the admin password?
If you can login to the CLI of the Virtual Controller and run the below which will show you the unecrypted version of the running configuration along with any SSID keys.
show run no-encrypt
If you need to reset the admin password you can do it with a console cable for that AP and login with username "admin" and password "forgetme!"
Change the password:
config t
mgmt-user admin
password: