After upgrading a website from v. 4.7.0 to 5.5.1 I am getting this error anytime I try to go into a module's settings:

ModuleId: 4501
ModuleDefId: -1
FriendlyName:
ModuleControlSource: Admin/Modules/ModuleSettings.ascx
AssemblyVersion: 5.5.1
PortalID: 4
PortalName: ###### ######
UserID: 1
UserName: host
ActiveTabID: 119
ActiveTabName: Home
RawURL: /Home/tabid/119/ctl/Module/ModuleId/4501/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.###############.com/Home/tabid/119/Default.aspx
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10 (.NET CLR 3.5.30729) Creative ZENcast v2.01.01
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: b8457a84-f4ba-4bfc-b2ab-6a9e0e356c73
InnerException: C:######\Admin\Modules\ModuleSettings.ascx.vb(651): error BC30451: 'destinationTab' is not declared. It may be inaccessible due to its protection level.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Web.Compilation.BuildManager.CompileWebFile
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: C:\#########\Admin\Modules\ModuleSettings.ascx.vb(651): error BC30451: 'destinationTab' is not declared. It may be inaccessible due to its protection level. ---> System.Web.HttpCompileException: C:\###########\Admin\Modules\ModuleSettings.ascx.vb(651): error BC30451: 'destinationTab' is not declared. It may be inaccessible due to its protection level. at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) at System.Web.Compilation.BuildManager.GetVPathBuildResult(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean ensureIsUpToDate) at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath) at DotNetNuke.UI.ControlUtilities.LoadControl[T](TemplateControl containerControl, String ControlSrc) at DotNetNuke.UI.Modules.ModuleHost.LoadModuleControl() --- End of inner exception stack trace ---
Source:
Server Name: WEB-T4YSZWRHZZZ

It is caused by the following line of code missing in the ModuleSettings.ascx.vb file in the admin -> modules folder... I changed it in a text editor i.e. notepad

Dim destinationTab as TabInfo

This code is around line 651

Dim listTabs As List(Of Entities.Tabs.TabInfo) =
TabController.GetPortalTabs(PortalSettings.PortalId, Null.NullInteger, False, True)

If chkAllTabs.Checked Then
If Not chkNewTabs.Checked Then
For Each destinationTab In listTabs
objModules.CopyModule([Module], destinationTab, Null.NullString, True)
Next
End If
Else