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Can not play new side quest and my haven’t got new updates

The new side quest hasn’t been place in my game and I have the same ones since 2020
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Even if you were not able to do an Upgrade, the Side Quest would no longer be there.
Of which, the game Requires an Update after only 2-3 days (at most) of new month version being available, so you shouldn’t even be able to run the game without updating.
If you are still running a old version of the game (2+ year old, according to your post saying 2020 unless that was a typo) and still have old Side Quest content available within your game, then you must be running a very hacked/illegal copy of game app (downloaded from a non-official source), that somehow offloaded content into the App itself (instead of running from Servers).