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I just upgraded my webserver from Plesk 8.3 to Plesk 9. Now it's asking me for a new licence key I don't have! I'd like to come back to the old version, but my last backup doesn't work. What shall I do?

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closed as off-topic by HopelessN00b Jan 14 '15 at 4:35

  • This question does not appear to be about server, networking, or related infrastructure administration within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

This question appears to be off-topic because it is about working with a service provider's management interface, such as cPanel. – HopelessN00b Jan 14 '15 at 4:35
up vote 1 down vote accepted

Upgrade your license key to 9.x.

Even if there is a way to downgrade Plesk (and I really doubt it given the amount of changes between 8.x and 9.x), I wouldn't trust it not to completely break your box (not that installing Plesk hasn't already done this for you anyway).

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Here is the Plesk License Update System. From here you should be able to upgrade the licnese key to the version that you need for the software that is installed.

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