Backup failed : The Perl module Crypt::SSLeay needed to communicate with Amazon's S3 service is not

I just upgraded to Virtualmin Pro, but it does not seem to have worked properly. I received an error that the upgrade did not complete, but I see all of the Pro features--and the (Pro) in the system info.

When I try to use the Amazon S3 backup, however, I am getting the following error:
Backup failed : The Perl module Crypt::SSLeay needed to communicate with Amazon's S3 service is not installed

I have installed the Crypt::SSLeay perm module (and the XML::Simple that also was missing), but it still gives me this error.

The server is a Joyent Accelerator. Thanks for your help.