[Plugin: Quick Adsense] NoAds Disappeared from Editor and removes itself when manually inserted on p

I am using the latest version of the plug-in and the latest version of WordPress. All was fine until recently. Now, none of the insert options (<!–NoAds–>, etc.) are available from the editor menu. I have previously gotten around that by just inserting the code manually. However, as soon as I update a post, the tag removes itself and pages that are supposed to have NO ads suddenly have ads in them. Can someone please help me with this?

https://www.ads-software.com/extend/plugins/quick-adsense/