Ok, since I've begun to dig deeper into the database side of DNN, I've tried to expand my knowledge of the host and admin portal functions.  I have looked at a few different Admin > Event Viewer tabs in my various portals, and I've noticed a pattern: lots of EXCEPTIONS. 

Here are 3 examples that I'm getting on EVERY portal I am running:

1. System.Web.HttpException: Could not load type ''. ---> System.ArgumentException: String cannot have zero length. at System.Reflection.Assembly.GetType(String name, Boolean throwOnError, Boolean ignoreCase) at System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) --- End of inner exception stack trace --- at System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) at DotNetNuke.Framework.Reflection.CreateType(String TypeName, String CacheKey, Boolean UseCache, Boolean IgnoreErrors)

2. Shutdown Details: The AppDomain shut down because of the hosting environment.

3. Message: System.ArgumentNullException: Value cannot be null. Parameter name: type at System.Activator.CreateInstance(Type type, Boolean nonPublic) at DotNetNuke.Framework.Reflection.CreateObject(String TypeName, String CacheKey) at DotNetNuke.Services.Search.ModuleIndexer.GetModuleList(Int32 PortalID)

Are these exceptions/errors/messages going to affect my site performance?

Any insight as to these types of messages would be appreciated.

Thank you.

Thanks, Sebastian...

I ran the update query and will continue to monitor my sites.

So, Mitchel, the update query provided by Sebastian would theoretically take care of the issue if in fact it was caused by the supportedfeatures value, correct?  Sorry I have to ask such specific questions to make sure I actually know what's going on.

Thanks again,
Chad