A hotfix is needed to correct this error. Refer to the Hotfix file and instructions below: How to apply hotfixesHot fix File Related ArticlesPractice Management: Apply hotfix filesPractice Management: InfoTrack changePractice Management: Version PM 11.3.5Practice Management: The type initializer for 'APS.Console.ActionDeferrer' threw an exceptionTax Australia: Previously lodged Activity Statements not displaying