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App installer issue

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Web Pro Panel - Application installer issue

Hello there,

I have a license for Web Pro Panel but i have an issue with the app installer.
Each time i try to install any app i get an error similar with this one:

Error: The following error has occurred during the download of application: HTTP Error (0) http://catalog.marketplace.parallel...la.org/joomla/3.3.1-2.aps?packager=SofCloudIT

Any suggestions?
Any special right or opened port required for this to work?

Thanks in advance
 
Firewall? Check that hostname catalog.marketplace.parallels.com is correctly resolvable and accessible.
 
Solved, i have opened the ports 11443 and 11444, both being specified in version 9 panel docs.
 
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