The first error seems to be due to no policy match (as the event log indicates). Most likely, your policies were not enabled or PAP was not one of the supported authentication methods for any of the policies.
The second event log most likely would have occurred after you corrected the above issues (enable policy, enable PAP authentication); again, it is likely that your policy matched, but failed constraints related to NAS Port Type. Please make sure that you either have no such constraints or your RADIUS client sends in the correct NAS-Port-Type indication in the Access-Request.