My illustrator was ME and used to have text direction tool in the paragraph box
and a button for digits in the Character Box,
Can you please help me to resolve this issue?
from creative cloud app. Check the App Language in preferences as shown below. once you set it it you may need to reinstall Illustrator
Since your Ai used to have Middle Eastern features enabled as you mentioned, then it is most likely that you lost these features in an update. Just follow Mohammad.Harb instructions to remove, then re-install new Illustrator copy that supports Arabic.
if you dont have text direction in the paragraph panel, it doesn't support Arabic ( ME languages ingeneral), you may have more than version on your device! make sure to remove all versions from your device (uninstall) before you change the preferences from CC and install again.