The following error appears while opening a site in Web Presence Builder:
Internal error. Please contact the server administrator.
The following error appears in
2012-02-02T10:42:03+04:00 [EMERG] [System] /sitebuilder/JsonApi/ SB_Facade_Exception_NotFound: Widget is not found.
Such behavior is considered to be a software issue with ID TP-97809 - widget is not found. The fix will be included in future WPB updates released after 11.0.
Upgrade to the latest version of Web Presence Builder to version 11.0 or higher.
Hotfix for Parallels Web Presence Builder 10.4
Since the issue requires complex manipulations with the database, it is recommended to contact Plesk Technical Support for assistance.