Page not found

Hello. I have aleady browsed the support forum and this seems to be a common problem with this plugin. I have installed and set up Events Maker, created some test events… and no single Event Maker-related link is working. Event details, calendar page… You name it. All of them give a 404 error. Following the usual advice to other forum users with similar problems, I have resaved permalinks. That did not help. It’s not theme-related either, and changing theme to Twenty Seventeen does not help either.

I am using WP 4.9.2 with WPML 3.9.1 (just installed and active, and set up for English and Spanish, but with not much translated content).