1- ErrorException: Undefined index: location - library/XenForo/ControllerPublic/Register.php:783
2- ErrorException: Undefined index: id_str - library/XenForo/ControllerPublic/Register.php:822
3- Zend_Db_Statement_Mysqli_Exception: Mysqli statement execute error : Column 'provider_key' cannot be null - library/Zend/Db/Statement/Mysqli.php:214
4- ErrorException: Undefined index: id_str - library/XenForo/ControllerPublic/Register.php:673
I'm not sure what have caused them or why they were there.
If you can please help me with those as I'm a little concerned and what to make sure that nothing is wrong.