Transferring Resource Pack

So, I'm trying to move my 1.19.2 resource pack over to 1.20.1. Everything works in 1.19.2, but when I switch to 1.20.1, all the textures for the models show the purple and black thingy. Could someone show me the right format for models? I currently have this. (just for one model but the rest are like this too)
{
 "parent": "item/handheld_rod",
 "textures": {
  "layer0": "item/warped_fungus_on_a_stick"
 },
 "overrides": [
    { "predicate": {"custom_model_data": 34}, "model": "phase_sm/right_venom"},
    { "predicate": {"custom_model_data": 393}, "model": "phase_sm/vile"},
    { "predicate": {"custom_model_data": 394}, "model": "phase_sm/smdna"},
  { "predicate": {"custom_model_data": 5702}, "model": "phase_sm/arm_right"},
  { "predicate": {"custom_model_data": 5703}, "model": "phase_sm/arm_right"},
  { "predicate": {"custom_model_data": 5704}, "model": "phase_sm/arm_right"},
  { "predicate": {"custom_model_data": 5705}, "model": "phase_sm/arm_right"},
  { "predicate": {"custom_model_data": 5706}, "model": "phase_sm/arm_right"},
  { "predicate": {"custom_model_data": 5707}, "model": "phase_sm/arm_right"},
  { "predicate": {"custom_model_data": 5708}, "model": "phase_sm/arm_right"}
 ]
}
and it doesnt work! All the textures filepaths are correct.