Facebook calendar - nothing works

Hi,

My problem started when I accidentally deleted my Fb app from my cellphone. I reinstalled it but the events showed up doubled. Then I deleted and installed it several times but the calendar didn't sync anymore. How to resolve it? Thank you.

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Yes, I did but it didn't change anything.

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Another problem is that I can't check Facebook notification directly from the Hub, I need to go to the application to do that.

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