Hi all,

Im having a serious problem with ALL of my Umbraco installations on my VPS server.

I have changed the hostname in Plesk for the server. Since doing this all the sites went down. It seems that changing the hostname, Plesk resets all the permissions and handler mappings in IIS.

I have gone through all the sites and set the permissions correctly again.

However, I am also having a common issue on all the sites still...

Clicking on a node in the content tree is giving me an error... See image.

Value cannot be null.
Parameter name: Property pageTitle (64) on Content Type umbTextpage could not be retrieved for Document 1085 on Tab Page Content. To fix this problem, delete the property and recreate it

This is happening for ALL pages on ALL installations.

I have checked the Umbraco XML in the App_Data folder and all the nodes are there and contain the correct values. It seems that the API doesnt recognise the Document Type Properties.

PLEASE can anyone help me with this?

There's also another strange thing happening, on one site, the left hand pane where the tree displays is blank on every Umbraco Section. I have tried to change the compilation debug to "true" but still nothing.

Please help with this

Thanks

Roger