I don't know what package has the function smartbind, but do.call doesn't work this way. You're supposed to use it in the form do.call(function_name, list(argument_1, argument_2, ...)).
If you want more specific pointers, can you please provide a REPRoducible EXample of your problem? It provides more specifics of your problem, and it helps others to understand what problem you are facing.
If you don't know how to do it, take a look at this thread: