Why is my sphere not jumping on press spacebar?

Development Programming & Scripting
1

I have created a UE4 Project in which my character cannot jump. Please help me anyone. Any help will be appreciated. This is my Code: // Fill out your copyright notice in the Description page of Project Settings.

#include "PlayerCharacter.h"
#include "Components/InputComponent.h"
#include "GameFramework/FloatingPawnMovement.h"
#include "GameFramework/CharacterMovementComponent.h"

// Sets default values
APlayerCharacter::APlayerCharacter()
{
 	// Set this character to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;

	MyMesh = CreateDefaultSubobject<UStaticMeshComponent>("MyMesh");

	GetCharacterMovement()->JumpZVelocity = 600.0f;
	GetCharacterMovement()->AirControl = 0.2f;
}

// Called when the game starts or when spawned
void APlayerCharacter::BeginPlay()
{
	Super::BeginPlay();

	bDead = false;
	
}

// Called every frame
void APlayerCharacter::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

}

// Called to bind functionality to input
void APlayerCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
{
	Super::SetupPlayerInputComponent(PlayerInputComponent);

	PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &ACharacter::Jump);
	PlayerInputComponent->BindAction("Jump", IE_Released, this, &ACharacter::StopJumping);

}

void APlayerCharacter::Jump()
{
	if (!bDead)
	{
		GetCharacterMovement()->AddImpulse(GetActorUpVector(), true);
		AddMovementInput(GetActorUpVector(), 3.f);
	};
};

I have mapped space bar Jump input in my project settings with the name ‘Jump’. My character is a sphere with simulate physics set to true. When i turn it off, my sphere falls down through the road like a ghost.
Thanks in advance!