Plugin installed but no left hand menu visible

Hi

I’ve been using the plugin on my localhost site all fine, but now I have installed it on my live site. The settings are accessible in the Settings | Custom Content submenu on the lefthand side of the admin screens, but there is no Shortcodes menu to access the shortcodes. I have deactivated then activated the plugin in case that made a difference, but it did not.

I appear to be using the same other plugins in both environments, so can you suggest how to resolve this – apart from switching off every plugin to see what is conflicting ie are you aware of any conflicts that have occurred in the past etc.

TIA