Conflict between Events Manager and Yoast

I have been using Yoast since many years together with Events Manager. All did work smothly until now. When I try to access a date, through the calender widget, with more than one event the same day, I get the following error message:

Warning: explode() expects parameter 1 to be string, object given in public_html/wp-content/plugins/events-manager/em-events.php on line 233

Warning: Invalid argument supplied for foreach() in public_html/wp-content/plugins/events-manager/em-events.php on line 234

Recoverable fatal error: Object of class Yoast\WP\SEO\Presentations\Indexable_Post_Type_Presentation could not be converted to string in public_html/wp-content/plugins/events-manager/em-events.php on line 243

If I disable Yoast, it all work smothly.