I have a problem with updating my cornerstone (X Themeco) it is indicating this :
This Cornerstone license is not validated & An error occurred while updating Cornerstone: X is not validated. Validate X to enable automatic updates.
I also did validate the as it indicated but it is still showing the error. also this error is interfering with certain plugins such as the Revolution Slider which indicating this when activating it:
Plugin could not be activated because it triggered a fatal error.
Thanks in advance