Project reading exception using MspDbSetting

Hello,
I am using aspose.tasks 18.2.0.0. i bough the product in march 2016 and this is the last release which i can use with my subscription.

I am using Aspose.tasks to ready project from Project Server 2007 database using MspDbSetting when i try to load the project in Aspose.tasks.project it throws the Project Reading Exception Invalid column name PROJ_TASKS_ARE_MANUAL i m stuck here and cant move forward with my project.
I bought the product to read project from MS Project server database but this product has bugs in it. Kindly help me in this regard.

@nadeem1362

I request you to please first try using latest Aspose.Tasks for .NET 21.9 on your end. In case there is still an issue then please share the source file and used sample code reproducing the issue on your end.