Promlems of Luhmann's reproduction-theory

We try to summarize Luhmann's theory. We assert his theory is dependent on his concept of “reproduction”. But we think the concept of reproduction should be separated into two level-“reproduction I” and “reproduction II”. Luhmann's theory does not succeed on the “reproduction II” level. Therefore it should be investigated how social systems are reproduced (I) as if they are reproduced (II).