The first script (the one by Amr.fayz) moves and symlinks a lot of directories that are not handled in the original script. That may be the cause of the problem.

Plus, the "Miroroot" folder is not created at the beginning of the script but the first time mkdir -p is used.

Nevertheless, the script does chmod +x and chmod 755 (which in itself makes me seriously doubt of the skills of this Amr.fayz) on that folder, before it is even created.

Don't want to blame anybody without being 100% but looking at the script my first thought would be "HANDS OFF", and *I* can read and write shell scripts and know my way around Unix. An inexperienced user should think "HANDS OFF" before even looking at the script.

Obviously the damage is reversible. By definition. But at least *I* will not do the hard work of reversing that. So either the original author of the script (Amr.fayz) comes to the rescue, or the OP does a complete reflash.