[Plugin: CKEditor For WordPress] ckeditor_wordpress::can_upload() is private

ckeditor_wordpress::can_upload()

is declared as a private method, yet it is called as a public method here:

$Config[‘Enabled’] = $ckeditor_wordpress->file_browser == ‘builtin’ && $ckeditor_wordpress->can_upload();

on line 35 of plugins\ckeditor-for-wordpress\filemanager\connectors\php\config.php

This causes an error when I try to upload a file using the Built-in(old) file browser:

Fatal error: Call to private method ckeditor_wordpress::can_upload() from context ” in \wp-content\plugins\ckeditor-for-wordpress\filemanager\connectors\php\config.php on line 35

https://www.ads-software.com/extend/plugins/ckeditor-for-wordpress/