Hi I think that I now had not been tested in this way, let's rephrase my problem then
the metabox plugin is loaded internally in my plugin example
my-plugin> frameworks> meta-box-master
Ie after the last updates the plugin is not being charged with a suplimento another plugin
https://metabox.io/faq/
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Can I include into my premium plugins themes / plugins?
Yes, absolutely. You can use plugins in your premium, commercial products, but you have to keep credit to me the the author of the plugin.
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Today I carry the meta-box-master
so in my
require_once plugin ('4.8.7 / meta-box.php');
require_once('mb-settings-page/mb-settings-page.php');
require_once('meta-box-group/meta-box-group.php');
require_once('meta-box-tabs/meta-box-tabs.php');
ie the problem is being load within a plugin
.
