"The directory specified for uploaded files does not exist or is not writable" OJS installation Error

The directory specified for uploaded files does not exist or is not writable

We tried many solutions and even contacted Hostinger (our host) but it wasn’t solved.
As a Summary,
1- Fixed the file ownership
2- Recreated the directories many times, changed their permissions to 777, and tested it using test.txt
3- Changed the OJS’ config.inc.php from files to my path
4- Cleared the Website Cache 5- Checked PHP Settings “Open basedir” and tried using the relative path “/files or mydomain/files”
6- Disabled ModSecurity Temporarily and after all of that, we still get the same OJS installer error

I tried both OJS 3.4.0-8 and OJS 3.3 LTS
I hope I can find here more ways to solve this issue