Fixes #6909 Thanks @thienvc!

I suspect that some recent inexplicable anomalies (such as incorrect language/locale, null TabId, or failures to retrieve certain portal settings) might be related to this issue.

We should review the codebase to identify if there are other places using this unsafe 'get method via reflection' pattern. This type of issue is particularly difficult to detect because it appears to fail silently (or swallow exceptions).

(Apologies for any language errors, I'm using Google Translate. :D)

I did review all usages of GetMethod and included another couple of fixes. I believe the Client Resources scenario was the only one that swallowed the exceptions. Thanks again for your investigation and input.