Issue Using Built in Trainable Classifiers in Auto Labelling Policies - Purview

Hello BanuMurali and thanks for reaching out. 
I am curious if this issue still persists on your end. This error would occur when a Sensitive Information type is referenced but the associated rule package is missing/not properly linked or maybe if the SIT was deleted, renamed -basically meaning the SIT's name no longer matches any existing rule package in your tenant. 
I will log this for investigation and see if we can get feedback on this behavior.