I am search about Manager version 20.9.89

1

كان عندى نسخه قديمه من البرنامج وعندما حاولت ان اعمل تحديث لا يريد ان يفتح ال
backup

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2

what was the Manager version in which you created the backup?

try downloading version 20.9.89 as per your OS from the links given in below post.

import the business file in version 20.9.89 and then create a new backup.
then install the latest version of Manager and import the newly created backup.