FMEObject how to read multiple shape and writer to multiple database

Just as in FME workbench, read multiple *.shp and automatic write into multiple database with dynamic schema. It is easy in workbench. Now I want to do the process in FMEObject. With the code below, open the source and destin dialog.

And what strange is that, this works successfully for monthes. Recently, this code does not work as I expect, and I can not remember which change I have made.