I was able to call an activity from the Web-Login Page. In this activity a flow is called as shown in image: "activity.png". The web-login call of the activity is shown in weblogin.png. I am getting an error in the tracer flow.png although the activity "ForgetPassword" and the flow called are saved in the same ruleset as the web-login: SYT_Unauthenticated.
From Flow.PNG the error specifies the applies to class of the Flow "ForgetPassword" is different than that of the primary page(PegaAccel-Task-InviteUser).Thats the reason Flow is not able to be identified.