How can I fix my frame script that does multiple things at a time?

1. You definitely had errors in the output
2. You have to compare GUI Positions and Sizes with UDim2.new()
3. Some of your numbers were -0
4. If you're comparing something, use ==
   1. if you're setting something, use =

May still not work, not sure your if statements should be sub indexed like you have them now.

local root = script.Parent

local Objects = {
    ['ImageLabel1'] = root:WaitForChild("ImageLabel1");

    ['TextButton1'] = root:WaitForChild("TextButton1");
    ['TextButton2'] = root:WaitForChild("TextButton2");
    ['TextButton3'] = root:WaitForChild("TextButton3");
    ['TextButton4'] = root:WaitForChild("TextButton4");
    ['TextButton5'] = root:WaitForChild("TextButton5");
    ['TextButton6'] = root:WaitForChild("TextButton6");

    ['TextLabel1'] = root:WaitForChild("TextLabel1");
    ['TextLabel2'] = root:WaitForChild("TextLabel2");



}


if root.Visible then
    for i,v in pairs(Objects) do 
        if v.ClassName == 'TextButton' and v.Name ~= 'TextButton6' then 
            v.Visible = false
        end
    end
    if Objects.ImageLabel1.Position == UDim2.new(0.358, 0,0.303, 0) then
        wait(1)
        Objects.ImageLabel1.Position = UDim2.new(0.358, 0,0, 0)
    end
    if Objects.TextLabel1.Position == UDim2.new(0.523, 0,0.605, 0) then
        wait(1)
        Objects.TextLabel1.Position = UDim2.new(0.521, 0, 0.305, 0)
    end
    if Objects.TextLabel2.Position == UDim2.new(0.523, 0,0.604, 0) then
        wait(1)
        Objects.TextLabel2.Position = UDim2.new(0.521, 0,0.304, 0)
    end
    for i,v in pairs(Objects) do
        if v.ClassName == 'TextButton' then 
            if not v.Visible then 
                v.Visible = true
            end
        end
    end
end

As far as i can see, the only issue is that you are defining a GuiObject.Position as two arrays, not a UDim2 value (which is what it is.)

Simply replace

{0.358, 0},{0.303, 0}

with

UDim2.new(0.358,0,0.303,0)

If you want to use it, I made a neater version as an example:

local P = script.Parent
local IL = P.ImageLabel1
local TL = P.TextLabel1
local TL2 = P.TextLabel2
for n = 1,5 do
    local c = P:FindFirstChild('TextButton'..n)
    c.Visible = false
end
if IL.Position == UDim2.new(0.358,0,0.303,0) then
    wait(1)
    IL.Position = UDim2.new(0.358,0,0,0)
end
if TL.Position == UDim2.new(0.523,0,0.605,0) then
    wait(1)
    TL.Position = UDim2.new(0.521,0,0.305,0)
end
if TL2.Position == UDim2.new(0.523,0,0.604,0) then
    wait(1)
    TL2.Position = UDim2.new(0.521,0,0.304,0)
end
for s = 1,6 do
    local T = P:FindFirstChild('TextButton'..s)
    if T.Visible == false then
        T.Visible = true
    end
end

you need to put an end after every task so here is the edit

if script.Parent.Visible == true then
    script.Parent.TextButton1.Visible = false
    script.Parent.TextButton2.Visible = false
    script.Parent.TextButton3.Visible = false
    script.Parent.TextButton4.Visible = false
    script.Parent.TextButton5.Visible = false
end
if  script.Parent.ImageLabel1.Position == UDim2.new(0.358, 0,0.303, 0) then
    wait(1)
    script.Parent.ImageLabel1.Position = UDim2.new(0.358, 0,-0, 0)
end
if  script.Parent.TextLabel1.Position = UDim2.new(20.523, 0,0.605, 0) then
    wait(1)
    script.Parent.TextLabel1.Position = UDim2.new(20.521, 0,0.305, 0)
end
if  script.Parent.TextLabel2.Position = UDim2.new(20.523, 0,0.604, 0) then
    wait(1)
    script.Parent.TextLabel2.Position = UDim2.new(20.521, 0,0.304, 0)
end
if  script.Parent.TextButton1.Visible == false then
    wait(1)
    script.Parent.TextButton1.Visible == true
end
if  script.Parent.TextButton2.Visible == false then
    wait(1)
    script.Parent.TextButton2.Visible == true
end
if  script.Parent.TextButton3.Visible == false then
    wait(1)
    script.Parent.TextButton3.Visible == true
end
if  script.Parent.TextButton4.Visible == false then
    wait(1)
    script.Parent.TextButton4.Visible == true
end
if  script.Parent.TextButton5.Visible == false then
    wait(1)
    script.Parent.TextButton6.Visible == true
end