アップデート失敗でフォーラムが開けません、機能しませんでした

And it showed:

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How can I fixed it?

「いいね!」 1

This was an upgrade from the web interface? It might have fixed itself when the upgrade finished?

But if not, Make sure that you have disk space and

 ./launcher rebuild app
「いいね!」 1

Go to https://yourforum.example.com/logs in your browser and find the error. It most likely contains more information.

「いいね!」 2