Hi there,
It seems the purchase code that you’ve provided isn’t valid. Can you please provide the proper purchase code. Also we’re going to push the updates really soon. Currently what you can do is update the king composer plugin & you’ll be able to modify the content.
About the gutenberg support we’re going to integrate it pretty soon on all of our themes.

Hi there,
Till now we can not recognize your purchase code. Please download your purchase code form your themeforest download section. Like this screenshot – http://prntscr.com/lttppr

You will see the item purchase code there. Purchase code will be like this 9593e5a3-8e18-431a-a373-f34f1246g820

Thanks for your co-operation.

Alright. However, we have already updated Seclek theme. Please download the latest version of this theme.

Important note: If you currently using the old version of the theme,

Please note that before installing the new update remove the seclek core plugin then install the new ones.

Thanks

You can download the theme from themeforest from your download section to get the latest update that’s it.