So I've been rummaging through the forums looking for examples of some of the errors I have recieved and while I haven't found an exact replication of my errors, I have come to find that most of those looking to help others ask for a copy/paste of the Evient Viewer log.  After navigating my Log Viewer and trying to get a better of understanding of it I am going to post a sample in hopes that someone can help me to better understand what I am looking at.  Not so much as a,"This is your problem." As a breakdown of what the information is within the log itself.  I am still very new with DNN, and programming in general, so any help what so ever is greatly appreciated!
Here is the most recent error:

ModuleId: 561
ModuleDefId: 104
FriendlyName: Supplement Formulary
ModuleControlSource: DesktopModules/HTML/HtmlModule.ascx
AssemblyVersion: 5.6.3
PortalID: 0
PortalName: Optima Solutions
UserID: 1
UserName: host
ActiveTabID: 131
ActiveTabName: Supplement Formulary
RawURL: /ClinicalbrSystem/SupplementFormulary.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.v3.os2fsdemo.com/ClinicalbrSystem/SupplementFormulary.aspx
UserAgent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: d2a3bfb4-e816-41aa-b262-47ddc795ab3d
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Modules.Html.HtmlModule.Page_Load
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Modules.Html.HtmlModule.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---

It seems from the error that you are trying to call some method from the Page_Load & inside that method you are assigning NULL value to some object. So compiler is throwing this error. Better you check your logic in Page_Load and proceed further by debugging.