I have Komento installed now for quite a few years, but have not been paying attention and have few comments, since I hardly write articles nowadays. My site is mainly the Kunena Board in use. However I noticed that the 3.0.10 (latest) version simply does not work. One can write a comment- like I tried several times- but the "Submit comment" button does not react at all.
I have Joomla 3.8.2 on Siteground with 7+ PHP.