Player teleports on top of hamster ball instead of inside! help?

I made a hamster ball but my player teleports on top of the ball instead of inside

This is the hamster ball in explorer: https://gyazo.com/181efcf03bdea73deb44eac046e73996

Help!

local CHARACTERS = game.Workspace:WaitForChild("CHARACTERS")

local modules = game:GetService("ReplicatedStorage"):WaitForChild("Modules")
	
local ballControllerClass = require(modules:WaitForChild("BallController"))
local ballObject = ballControllerClass.new(game.Players.LocalPlayer)

game:GetService("ContextActionService"):BindAction("DriveBall", function(action, state, input)
	if (state == Enum.UserInputState.Begin) then
		local dist = ballObject:DistanceFromCharacter()
		if (dist < -3 or dist > 0) then
			return
		end
		
		ballObject:SetActive(not ballObject.IsActive)
	end
end, false, Enum.KeyCode.E)

function ballObject:GetGravityVector(oldGravity)
	if (not self.IsActive) then
		return Vector3.new(0, 1, 0)
	end
	
	local ball = self.Ball
	local length = ball.Size.x/3 + 5
	
	local vel = ball.Velocity
	local hVel = vel - vel:Dot(oldGravity)*oldGravity
	
	local dirF = hVel:Dot(hVel) > 0 and hVel.Unit or Vector3.new(0, 0, 0)
	
	local ray = Ray.new(ball.Position, dirF*length)
	local hit, pos, normal = game.Workspace:FindPartOnRayWithIgnoreList(ray, {self.Ball, self.Character})
	
	if (hit and not hit:IsDescendantOf(CHARACTERS)) then
		return normal
	else
		local ray = Ray.new(ball.Position, -oldGravity*length)
		local hit, pos, normal = game.Workspace:FindPartOnRay(ray, self.Character)
		
		if (hit and not hit:IsDescendantOf(CHARACTERS)) then
			return normal
		else
			return oldGravity
		end
	end
end

This happens because there is not enough space inside the ball. Try removing things inside or making the ball bigger.