The Marshall Plan was not Germany-specific, it provided money for rebuilding of the entire Western Europe. It also coexisted with severe restrictions on German economy during the first post-war years, e.g.:

Even while the Marshall Plan was being implemented, the dismantling of German industry continued ... The first "level of industry" plan, signed by the Allies on March 29, 1946, had stated that German heavy industry was to be lowered to 50% of its 1938 levels by the destruction of 1,500 listed manufacturing plants.

Incidentally, Germany stopped paying reparations long before Hitler came to power. Not that that stopped various German governments from blaming Germany's economic problems on them.