How to solve "can't band facebook account issue ？

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I have a oculus rift device. I used it three years ago. I also can visit facebook .com .
The oculus setup is intalled successully yesterday.But when the Oculus  program is run first time, it's hold, and showed "cann't band facebook account"
How can I solve this issue?

[Richooal]

Your English translation doesn't make sense, did you use Google translate?

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The red line is "sorry, there is a mistake when banding the facebook account, please try it later".
Why？