Hello,
You can activate the theme now.
We can’t disable the limit. If you need to delete the current installation and start from scratch, just deactivate the theme – https://prnt.sc/uyzcst first, then you will be able to activate it.
Note that 1 license of the theme can be used on 1 staging site + 1 live/production site = 1 end project only – https://themeforest.net/licenses/standard
Regards