Hi,
Based on the screenshots, Avast Passwords is locked.
To unlock it, you need to enter the Master Password. (it is only valid on the device on which you set it up - it does not have to be the same Master Password as e.g. your phone, unless you decide to make it the same)
If you do not remember the Master Password then you can reset Avast Passwords to create a new Master Password. Please follow these steps:
Open Avast > Privacy > Passwords > Settings (when locked) > "Reset Avast Passwords and delete my data"