Yes, I tried 2.12.1 also. That didn’t work for me. Got this error:
Fatal error: Uncaught TypeError: method_exists(): Argument #1 ($object_or_class) must be of type object|string, null given in /home/s73952/domains/fashionave.se/public_html/wp-content/plugins/registrations-for-the-events-calendar/inc/class-rtec-wpml-lite.php:32 Stack trace: #0 /home/s73952/domains/fashionave.se/public_html/wp-content/plugins/registrations-for-the-events-calendar/inc/class-rtec-wpml-lite.php(32): method_exists() #1 /home/s73952/domains/fashionave.se/public_html/wp-content/plugins/registrations-for-the-events-calendar/inc/admin/class-rtec-admin.php(885): RTEC_WPML_Lite::wpml_is_active() #2 /home/s73952/domains/fashionave.se/public_html/wp-includes/class-wp-hook.php(324): RTEC_Admin->options_page_init() #3 /home/s73952/domains/fashionave.se/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #4 /home/s73952/domains/fashionave.se/public_html/wp-includes/plugin.php(517): WP_Hook->do_action() #5 /home/s73952/domains/fashionave.se/public_html/wp-admin/admin.php(175): do_action() #6 /home/s73952/domains/fashionave.se/public_html/wp-admin/plugins.php(10): require_once('/home/s73952/do...') #7 {main} thrown in /home/s73952/domains/fashionave.se/public_html/wp-content/plugins/registrations-for-the-events-calendar/inc/class-rtec-wpml-lite.php on line 32