The root cause of the issue is not having the java installed on the local machine where CA PAM is installed. After CA PAM Browser login from IE (the only browser still with NPAPPI support which is required for the applets), java plays an important role to load the applets in the Access Page. Also, it depends on the Bitness of the browser and Java.
3.x all Versions (3.2, 3.2.2, 3.2.3, 3.2.4,)
How to take the java console logs?
Control panel->java->Advanced, select enable logging,tracing, show applets and select show console radio button
after that try to login to PAM and access web portal in the Access Page. it will open a pop up and log all requests there.
Copy the logs from that window and attach that log file to the case.
KB for PAM 2.8.x