So i created a test machine but it didnt get recognized at the controller. Here's the machine code:
{ "registryname": "grass_to_energy", "localizedname": "Grass To Energy", "requires-blueprint": true, "parts": [ { "x": 0, "y": 0, "z": 1, "nbt": {"casingColor":"16730368","id":"minecraft:tilecolorablemachinecomponent"}, "elements": [ "modularmachinery:blockcasing@0" ] }, { "x": 1, "y": 0, "z": 0, "nbt": {"casingColor":"16730368","id":"minecraft:tilecolorablemachinecomponent"}, "elements": [ "modularmachinery:blockcasing@5" ] }, { "x": 0, "y": -1, "z": 1, "nbt": {"busSize":"0","casingColor":"16730368","id":"minecraft:tileitemoutputbus","inventory":{"inventoryArray":[{"holderEmpty":"1b","holderId":"0"}],"outSlots":,"miscSlots":,"inSlots":,"sides":}}, "elements": [ "modularmachinery:blockoutputbus@0" ] }, { "x": 1, "y": 0, "z": 1, "nbt": {"busSize":"0","casingColor":"16730368","id":"minecraft:tileiteminputbus","inventory":{"inventoryArray":[{"holderEmpty":"1b","holderId":"0"}],"outSlots":,"miscSlots":,"inSlots":,"sides":}}, "elements": [ "modularmachinery:blockinputbus@0" ] }, { "x": 1, "y": -1, "z": 1, "nbt": {"casingColor":"16730368","id":"minecraft:tilecolorablemachinecomponent"}, "elements": [ "modularmachinery:blockcasing@0" ] }, { "x": 1, "y": -1, "z": 0, "nbt": {"hatchSize":"0","casingColor":"16730368","id":"minecraft:tileenergyoutputhatch","energy":"0L"}, "elements": [ "modularmachinery:blockenergyoutputhatch@0" ] }, { "x": 0, "y": -1, "z": 0, "nbt": {"casingColor":"16730368","id":"minecraft:tilecolorablemachinecomponent"}, "elements": [ "modularmachinery:blockcasing@0" ] } ] }

and here's the recipe

{ "machine":"grass_to_energy", "registryName":"grass_recipe", "recipeTime":5, "requirements":[ { "type":"modularmachinery:item", "io-type":"input", "item":"minecraft:grass_block", "amount":32 }, { "type":"modularmachinery:energy", "io-type":"output", "energyPerTick":100 } ] }

whats wrong in here?

Check the client log to see what it says during recipe and machine load.