LevelReupload.php not working properly

[MrRare2]

Recently I made my own GDPS but when I try to reupload some levels, it says that the level doesn't exist even though it's not, and sometimes it returns nothing (just empty page), setting debug to 1 just prints out the level data of that ID

if 2.2 level: "This level doesn't exist"
If not 2.2 level: (empty)

branch: lists

link (if you want to test it): http://raregdps.000webhostapp.com/tools/levelReupload.php

[MrRare2]

Update: I eventually got it to work by by using this SQL command

ALTER TABLE levels MODIFY COLUMN settingsString MEDIUMTEXT DEFAULT '';

it's because of settingsString

[ElParaguasXD]

I't doesn't work to not 2.2 levels, can you help me?

[MegaSa1nt]

use my repo: https://github.com/MegaSa1nt/GMDprivateServer