Dear [customer name], (Cust: 0000000)
Thank you for contacting 1&1
Due to the nature of the problems you are having, I would recommend backing up all of your data, and reimaging the server. This can be done through your 1&1 Control Panel. I would recommend reinstalling Apache, or even MySQL, but this may destroy the Plesk installation.
If you have any further questions do not hesitate to contact us.
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Sincerely,
Technical Support
1&1 Internet Inc