Hello,
In the steps list, where did it originally fail or does your screen shot show the first point of failure?
If so I would also go to the vCenter client console and watch to see if it kicks off the VM clone (which is a snapshot and then clone and then removes the snapshot - don't blink on the snapshot steps). The clone in VMWare will take a few minutes depending on VM size.
If it does not kick off in vCenter then either the commands are not getting to vCenter (permissions on resources etc of the VLA user) or something like not enough space for the Clone in the datastore you are cloning to.
I will also look at the task logs in the vCenter client to see if it is actually getting kicked off in vCenter - if nothing there then go back to the VLA logs as there will be an error - /var/log/apache.../logs
Hope that helps point you to a couple of options to check.
Ken