E_WARNING: call_user_func_array() expects parameter 1 to be a valid callback, array must have exactly two members
Stack trace
 in WP_Hook::apply_filters called at /app/source/public/wp-includes/plugin.php (203)
in apply_filters called at /app/source/public/wp-content/plugins/google-apps-login/core/core_google_apps_login.php (451)
in core_google_apps_login::ga_init called at /app/source/public/wp-includes/class-wp-hook.php (286)in WP_Hook::apply_filters called at /app/source/public/wp-includes/class-wp-hook.php (310)in WP_Hook::do_action called at /app/source/public/wp-includes/plugin.php (453)in do_action called at /app/source/public/wp-settings.php (450)in require_once called at /app/source/public/wp-config.php (99)in require_once called at /app/source/public/wp-load.php (37)in require_once called at /app/source/public/wp-blog-header.php (13)in require called at /app/source/public/index.php (17)