MCreator 2020.4 Fluid procedure error

Hello, this error appears from trying to regenerate code and build. Element where crash happens is WaterTankClick procedure and inside it if statements.

Log:

Executing
    Gradle task: build

Build
    info: MCreator 2020.4.28114 EAP (28114), forge-1.15.2, 64-bit, 8191 MB,
    Windows 10, JVM 1.8.0_252, JAVA_HOME:
    C:\Users\laati\Documents\Ohjelmat\MCreator Snapshot\jdk

>
    Configure project :

New
    Dep: net.minecraftforge:forge:1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1

>
    Task :compileJava

C:\Users\laati\MCreatorWorkspaces\pumped_storage\src\main\java\net\qwinci\pumpedstorage\procedures\WaterTankClickProcedure.java:120:
    error: incompatible types: FluidStack cannot be converted to int
 
                           .ifPresent(capability ->
    _retval.set(capability.drain(amount, IFluidHandler.FluidAction.SIMULATE)));

 
                                                                               
     ^

C:\Users\laati\MCreatorWorkspaces\pumped_storage\src\main\java\net\qwinci\pumpedstorage\procedures\WaterTankClickProcedure.java:147:
    error: incompatible types: FluidStack cannot be converted to int
 
                           .ifPresent(capability ->
    _retval.set(capability.drain(amount, IFluidHandler.FluidAction.SIMULATE)));

 
                                                                               
     ^

Note:
    Some messages have been simplified; recompile with -Xdiags:verbose to get
    full output

2
    errors

>
    Task :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

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 52s

1
    actionable task: 1 executed

BUILD
    FAILED

Task
    completed in 55934 milliseconds