You can easily reset your password by following any two methods.

Method 1:

Step 1: If you want to reset your password click on forgot password

Step 2: Enter the email address in the box 

Step 3: A verification link will be sent to your email. Can change the password and log in.

Method 2:

If you have login to Radarr and change the password do follow the below steps

Step1: Click on the account button on the right corner of the page

Step 2: Click on the edit button

Step 3: Click on Password and reset the password

Step 4: Click on Save