Yes, It’s work.

Step is…
step (1) login your Cpanel and follow to the /public_html/wp-content
step (2) Remove the “object-cache.php” file
step (3) change the “plugins” folder name to “pluginss”
step (4) add new file “object-cache.php” file name.
step (5) change the “pluginss” folder name to “plugins”

then try to activate your license key, It’s work with me.

Thanks
Pantha Studio

• This reply was modified 4 years by PanthaStudio.

Yes, it’s not like an error on version 11.4, because I’m buy 2 licenses for my 2 projects, One license key is activated and onde is not.

I am submitting the License key but it’s showing unregistering, and also not saving my customization from themes panel.