My mob won't work.

Every time I try and save my mob it doesn't work. It says it can't be compiled. Please help!

Console error:

Executing Gradle task: build
Build info: MCreator 2020.4.32115, forge-1.15.2, 64-bit, 12173 MB, Windows 10, JVM 1.8.0_252, JAVA_HOME: C:\Program Files\Pylo\MCreator\jdk
> Configure project :
New Dep: net.minecraftforge:forge:1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1
> Task :compileJava FAILED
C:\Users\Ethan\MCreatorWorkspaces\cool_foodz_by_bluefrogmaster\src\main\java\net\mcreator\coolfoodzbybluefrogmaster\entity\CheeseWandererEntity.java:243: error: illegal start of expression return new ItemStack(, (int)(1));
^
C:\Users\Ethan\MCreatorWorkspaces\cool_foodz_by_bluefrogmaster\src\main\java\net\mcreator\coolfoodzbybluefrogmaster\entity\CheeseWandererEntity.java:247: error: illegal start of expression return new ItemStack(, (int)(1));
^
2 errors
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
Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.10.3/userguide/command_line_interface.html#se…
BUILD FAILED in 2s
1 actionable task: 1 executed
BUILD FAILED
Task completed in 4322 milliseconds