You placed the file in the wrong folder. Redo the installation or restart After Effects (the scripts folder only refreshes on launch).
If you can share (website name, author, screenshot), I can give a more specific review or tell you if it’s a known fake/crack. --- Arabic Text.jsx After Effects Download
You will often see the script listed as "--- Arabic Text.jsx" because the developer uses the long dash to keep the file pinned to the top of the File > Scripts menu in After Effects. You placed the file in the wrong folder
They offer Arabic Text v2.0 , specifically tailored for Persian and Arabic text layers. You will often see the script listed as "--- Arabic Text
If you are using or newer, you may not need a script for basic tasks. Adobe now includes a Universal Text Engine that allows you to type RTL languages directly. YouTube·Louie Aloc de la Torre