Hello. Bakit kaya ayaw mag sync ng facebook ko sa calendar? Pag nag log in ako sabi login failed try again. Thanks

For the first time ever , i used button synchronize in my original Stock callendar by Samsung. Suddenly , i lost everything. Hundrets of events planned for months. I almost threw my phone on the ground. I am so furious right now......... Could you help me ? I am lost without this....

I have a rooted s4 SGH-i337 running android 5.0.1 Lollipop and weather is not displaying in my Samsung Calendar. No matter how long I wait its still not showing any weather. Yes the weather check box is checked.

Can anyone tell me please what I did wrong?