Sorry for the difficulties while restoring your subscription. The Restore Purchases workflow breaks after Acrobat updates from a store that’s different from the original install store.
Details: When Acrobat updates manually or automatically from a store which is different from the original store, the restore subscription workflow breaks. For instance, when you download the app from Google’s Play Store but update it via Samsung’s Galaxy Store, it results in a dialog that asks you to reinstall the app.
Back up your data as follows: From the Home view, tap Files > On this Device.
For every file that you need to back up, tap overflowicon
Choose Save a Copy, select a location and complete the workflow.
The files in the Recent list are likely already backed up. With Acrobat open and a network connection, cloud files should already be synced. Acrobat’s local storage automatically is deleted when the app is uninstalled.
Uninstall the app.
Reinstall the app from the app store where you originally purchased your subscription.
For more help refer to:adobe.com/devnet-docs/acrobat/android/en/managingsubscriptions.html#resolve-issue-in-restore-purchases
Let us know how it works at your end. If you have any further queries please feel free to reach out to us.