Getting some weird errors after upgrading a site from CMS 5 R2 SP2 to 6. The site is globalized with no/dk/se.

The site is running and browseable, but certain functions in Admin Mode causes errors. For instance:

** ERROR 1: Searching for users or groups gives the error: "Input string was not in correct format".

It gives the same error whether the name/email/number of hits fields are filled in or left blank.

Error info from the Event Log:

Request information:

Request URL: http://mysitepath/cms/CMS/Admin/SearchUsers.aspx

Request path: /cms/CMS/Admin/SearchUsers.aspx

User host address: xxx.xxx.xxx.xxx

User: myuser

Is authenticated: True

Authentication Type: Forms

Thread account name: myAppPoolUser 

Thread information:

Thread ID: 12

Thread account name: myAppPoolUser

Is impersonating: False

Stack trace: at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)

at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)

at EPiServer.UI.Admin.SearchUsers.get_IsUserSearch()

at EPiServer.UI.Admin.SearchUsers.BindData(Int32 page)

at EPiServer.UI.WebControls.ToolButton.OnClick(EventArgs e)

at EPiServer.UI.WebControls.ToolButton.RaisePostBackEvent(String eventArgument)

at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)

at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

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** ERROR 2: Trying to change the interval type (hour/minute etc) on a scheduled job, e.g. Subscriptions, gives the error "Object reference not set.." when clicking the Save button.

Error info from Event Log:

Request information:

Request URL: http://mysitepath/cms/CMS/Admin/DatabaseJob.aspx?pluginId=41

Request path: /cms/CMS/Admin/DatabaseJob.aspx

User host address: xxx.xxx.xxx.xxx

Is authenticated: True

Authentication Type: Forms

Thread account name: myAppPoolUser 

Thread information:

Thread ID: 12

Thread account name: myAppPoolUser

Is impersonating: False

Stack trace: at EPiServer.UI.Admin.DatabaseJob.SaveChanges_Click(Object sender, EventArgs e)

at EPiServer.UI.WebControls.ToolButton.OnClick(EventArgs e)

at EPiServer.UI.WebControls.ToolButton.RaisePostBackEvent(String eventArgument)

at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)

at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

All these functions worked well on the CMS5 version of the site. Note: CMS6 version is NOT running on the same web server as the CMS5 site.

Any clues?