If you are on Umbraco 7.5.8 - 7.5.10. You might have seen this error. " 'System.Dynamic.ExpandoObject' does not contain a definition for 'Alias'" This is because the table column casing doesn't match the casing that the object in Umbraco expects. More details about the issue can be found at http://issues.umbraco.org/issue/U4-9560

How to fix?

The issue is in the legacy Umbraco object and will be solved in Umbraco 7.5.11. It's not something we can fix with a workaround in SEOChecker. If you  need the fix now install the latest nightly of Umbraco at https://ci.appveyor.com/project/Umbraco/umbraco-cms-hs8dx/build/6517/artifacts

What about other packages?

Other packages we build don't have this issues since those packages are all using the new services instead of legacy models.