Hi... would it be possible to get a previous version of your Plone VM. ideally 4.3.6-2 or any 4.3.x
You can find the installer in the link belowhttps://downloads.bitnami.com/files/stacks/plone/4.3.6-2/bitnami-plone-4.3.6-2-linux-x64-installer.run
I hope it helps! Please, let us know if you have any other question.
Is there a link of the virtual machine image for VMware or VirtualBox, instead of the installer you sent?
Sure, here you go.