Where have you sent the emails to? I don’t have any unanswered emails, so perhaps your emails have gone missing. In any case, this is the only place where I provide support, so my reply in email would’ve been to tell you to ask your question here.
Do you have Relevanssi installed on your site? Relevanssi and Relevanssi Live Ajax Search are separate plugins. Live Ajax Search does not have a settings page because it does not have any settings to adjust. Live Ajax Search only provides the live search. Relevanssi is a full search engine and has all those features like logging. It has a settings page at Settings > Relevanssi.
It sounds like you need to install Relevanssi to gain access to Relevanssi settings.