I am very new to WordPress, deeply technologically incompetent and trying to maintain a website which someone else built, for a (very) small environmental charity. I did something wrong and now have an error message Optin Cat: Invalid Form ID on every page which I can’t get rid. The degree of my incompetence is such that I can’t understand any of the instructions given above. Terms like plug-in and AWeber are like a foreign language. Would it be possible in idiot-speak to take me through step by step what to do to delete it, please? I mean at the level of click on this, then click on that, then click save? That basic! Sorry to bother you with such a dim question.
