3D Model Armor error

The error says  " Your workspace contains mod elements  that dont compile properly
This was most likely caused by the last mod element you added or edited[...]

and also heres what i see on console
"C:\Users\adria\MCreatorWorkspaces\nzism\build\sources\main\java\net\mcreator\nzism\item\ItemHatArmor.java:67: error: cannot find symbol    public static class Modelhat extends EntityModel<Entity> {
                                        ^
  symbol:   class EntityModel
  location: class ItemHatArmor
C:\Users\adria\MCreatorWorkspaces\nzism\build\sources\main\java\net\mcreator\nzism\item\ItemHatArmor.java:78: error: cannot find symbol       public void render(MatrixStack matrixStack, IVertexBuilder buffer, int packedLight, int packedOverlay, float red, float green, float blue,
                         ^
  symbol:   class MatrixStack
  location: class Modelhat
C:\Users\adria\MCreatorWorkspaces\nzism\build\sources\main\java\net\mcreator\nzism\item\ItemHatArmor.java:78: error: cannot find symbol       public void render(MatrixStack matrixStack, IVertexBuilder buffer, int packedLight, int packedOverlay, float red, float green, float blue,
                                                  ^
  symbol:   class IVertexBuilder
  location: class Modelhat
3 errors
:compileJava FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 3s
5 actionable tasks: 3 executed, 2 up-to-date
BUILD FAILE

thats also the .java code
pastebin: https://pastebin.com/UFf588C7