Fatal error

Hello,

Today I found an fatal error on our website:

Catchable fatal error: Argument 1 passed to OpeningHours\Util\Weekdays::containsToday() must be of the type array, null given, called in /home/limbo/domains/xxxxxxx/public_html/wp-content/plugins/wp-opening-hours/classes/OpeningHours/Module/Shortcode/Overview.php on line 118 and defined in /home/limbo/domains/xxxxxxx/public_html/wp-content/plugins/wp-opening-hours/classes/OpeningHours/Util/Weekdays.php on line 167

Could you please help with this? I can give you the link of the website but the mod is not activated because of this..

Thanks, for any help on this!

Vincent Volmer