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site disappeared from the sitebuilder

TimidJester

New Pleskian
one of my customers has a site that was made in the site builder, and the site is still active, but everything has disappeared from the site builder itself. they wanted to edit some things and when they try to log in, they get;

Internal Sitebuilder error.
File: /usr/local/sitebuilder/include/SB/Actions/SSO/Proxy.php; Line: 141
Message: SSO response signature is not valid; Code: 0

When I try logging in as admin, site builder tells me the site doesn't exist, start from the beginning.

Has anybody ever seen this before? Any idea what would cause this or how to fix it?
 
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