Real Dismiss any Exasperate Notices about GravityForms, GravityView invalid license and e.t.c. But better, try the plugin: Плагин "Notice Interceptor"
Plugin Tag: dismiss
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Notice Interceptor
Tool for creating a comfortable living environment in the Admin area without annoying notifications and ad units.
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The Viking Auto Dismiss
Automatically dismisses annoying admin notices while keeping important WordPress updates and security warnings visible.