I am sorry to hear that you have experienced this issue. Unfortunately, I cannot tell what exactly causes this problem. In order to learn the exact reason for the problem we need to examine the issue directly on your server. Please contact us via Customer Help Desk and provide temporary access to your server by clicking on the Add record link on the Access information page of your Help Desk account so that we could examine the issue.
You can contact us via Customer Help Desk as well and provide temporary access to your server by clicking on the Add record link on the Access information page of your Help Desk account so that we could examine the issue. In different cases the reason for such an error could also be different.