Error in Beta version 3.0.0

I’m testing your Beta version 3.0.0 and it’s showing the error:

Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘NimblePortfolioPlugin’ does not have a method ‘adminNoticeAddonUpdate’ in C:\wamp\www\wptestes\wp-includes\class-wp-hook.php on line 298
Call Stack
# Time Memory Function Location
1 0.0060 411440 {main}( ) …\post.php:0
2 7.8644 26733184 include( ‘C:\wamp\www\wptestes\wp-admin\edit-form-advanced.php’ ) …\post.php:173
3 7.9945 27222424 require_once( ‘C:\wamp\www\wptestes\wp-admin\admin-header.php’ ) …\edit-form-advanced.php:472
4 8.3015 27309584 do_action( ) …\admin-header.php:255
5 8.3015 27309880 WP_Hook->do_action( ) …\plugin.php:453
6 8.3015 27309904 WP_Hook->apply_filters( ) …\class-wp-hook.php:323