Android game crashes at launch , Log error : "LogPluginManager: Error: Unable to load plugin 'AdmobGoodies'. Aborting."

Hello, I recently bought this plugin that enable all kinds of advertising on android called "AdmobGoodies’ to implement ads in my android app. But when I launch the app from UE4 to my android device it crashes on launch and I get this error message in the log “LogPluginManager: Error: Unable to load plugin ‘AdmobGoodies’. Aborting.”.

I am using UE 4.27 build from source.
I tried using the plugin in the launcher version of the engine and the app does not crash, it seems something has to be done differently if you use a version build from source.
Could someone help with this?