How can I fix this server script that works only on play solo? [closed]

This script fires everytime the weapon is shot. It works perfectly fine in solo mode but while in a local server, it doesn't. What should I do?

local RepStorage = game:GetService("ReplicatedStorage")
local Remote = RepStorage:WaitForChild("Remote")
local LocalRemote = Remote:WaitForChild("GunRaycast")

LocalRemote.OnServerEvent:connect(function(player, BaseDamage, RayLength, Tool, BarrlePos, aim, raycast)

    local function tagHumanoid(humanoid)
    local plr=game.Players:playerFromCharacter(Tool.Parent)
        if plr~=nil then
            local tag=Instance.new("ObjectValue")
            tag.Value=plr
            tag.Name="creator"
            tag.Parent=humanoid
            delay(2,function()
                if tag~=nil then
                    tag.Parent=nil
                end
            end)
        end
    end

    local function computeDirection(vec)
    local lenSquared = vec.magnitude * vec.magnitude
    local invSqrt = 1 / math.sqrt(lenSquared)
    return Vector3.new(vec.x * invSqrt, vec.y * invSqrt, vec.z * invSqrt)
    end

    local Bullet=Instance.new("Part")
    Bullet.Name="Bullet"
    Bullet.BrickColor=BrickColor.new("Bright orange")
    Bullet.Anchored=true
    Bullet.CanCollide=false
    Bullet.Locked=true
    Bullet.Size=Vector3.new(1,1,1)
    Bullet.Transparency=0
    Bullet.Material = "Neon"    
    Bullet.formFactor=0
    Bullet.TopSurface=0
    Bullet.BottomSurface=0
    local mesh=Instance.new("SpecialMesh")
    mesh.Parent=Bullet
    mesh.MeshType="Brick"
    mesh.Name="Mesh"
    mesh.Scale=Vector3.new(1,1,1)

    local bullet = Bullet:Clone()   
    bullet.BrickColor = BrickColor.Black()

    bullet.Name = "Raycast"
    local totalDist=0
    local Lengthdist=-RayLength/.5
    local startpoint=Tool.Handle.CFrame*BarrlePos
    local dir=(aim)-startpoint
    dir=computeDirection(dir)
    local cfrm=CFrame.new(startpoint, dir+startpoint)
    local hit,pos,normal,time=raycast(game.Workspace, startpoint, cfrm*Vector3.new(0,0,Lengthdist)-startpoint, function(brick)
        if brick.Name=="Glass" then
            return true
        elseif brick.Name=="Bullet" or brick.Name=="BulletTexture" then
            return false
        elseif brick:IsDescendantOf(Tool.Parent) then
            return false
        elseif brick.Name=="Handle" then
            if brick.Parent:IsDescendantOf(Tool.Parent) then
                return false
            else
                return true
            end
        end
        return true
    end)

    if hit~=nil then
        local humanoid=hit.Parent.Parent:FindFirstChild("Humanoid") or hit.Parent:FindFirstChild("Humanoid")
        if humanoid~=nil then
            local damage=math.random(BaseDamage-(BaseDamage*.1),BaseDamage+(BaseDamage*.1))
            if humanoid.Health>0 then
                local eplr=game.Players:playerFromCharacter(humanoid.Parent)
                local plr=game.Players:playerFromCharacter(Tool.Parent)
                if eplr~=nil and plr~=nil then
                if eplr.TeamColor~=plr.TeamColor or eplr.Neutral or plr.Neutral then
                        tagHumanoid(humanoid)
                        humanoid:TakeDamage(damage)
                end
                else
                    tagHumanoid(humanoid)
                    humanoid:TakeDamage(damage)
                end
            end
        end
        local distance=(startpoint-pos).magnitude
        bullet.CFrame=cfrm*CFrame.new(0,0,-distance/2)
        bullet.Mesh.Scale=Vector3.new(.15,.15,distance)
    else
        bullet.CFrame=cfrm*CFrame.new(0,0,-RayLength/2) 
        bullet.Mesh.Scale=Vector3.new(.15,.15,RayLength)
    end
    if pos~=nil then

    end

    bullet.Parent = workspace
    wait(0.1)
    bullet:remove()

end)