User is trown out directly after login with JFBC google

User is trown out directly after login with JFBC google -> facebook and linkedin, Twiiter is not proceeding. it looks it works fine but after giving in, for example: Linkeidn username and paswword it send the user back to home to login.

Only at google + it logs in and directly it has no rights.

see screen shot.

with error reporting got the next error:

Notice: Uninitialized string offset: 0 in /Domainremoved/httpdocs/components/com_community/helpers/access.php on line 46

Warning: call_user_func_array() expects parameter 1 to be a valid callback, class 'CAccess' does not have a method 'authorise' in /Domainremoved/httpdocs/components/com_community/helpers/access.php on line 74

and than a few times in a row.

linie 46 starts here
$assetName{0} = strtolower($assetName{0});

// Append asset with action.
$assetName .= $actionName;

// Argument pass to the function.
$arg = array($assetName, $userId);
// Add asset id to arguement.
if ($assetId >= 0) {
array_push($arg, $assetId);
}
// Add asset object to arguement.
if ($assetObject != null) {
array_push($arg, $assetObject);
}

// Include particular access class
$path = JPATH_ROOT.'/components/com_community/helpers/access/'. $class .'.php';

if( JFile::exists( $path ) )
{
include_once( $path );
}

$className = 'C' . ucfirst($class) . 'Access';

// Call library access class, $obj::authorise
if( class_exists($className) ) {
return call_user_func_array(array($className, 'authorise'), $arg);
} else {
return null; --> line 76 <----
}

}