King Attorney theme installed. It has several required Plugins it wants to install but most of them fail.

I get this:
An error occurred while installing EF3 Import And Export: <strong> The package could not be installed. PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature </strong>.

These are the plugins that fail:
EF3 Import And Export
Visual Composer
Revolution Slider


The author of that theme will probably know best @ThemeNovo

Here is their support information -

Hope that helps!