When using this module with Drupal 10 and PHP 8 we get a deprecated error on the node creation form with a virtual event associated to this entity.
Deprecated function: mb_strtolower(): Passing null to parameter #1 ($string) of type string is deprecated in Drupal\Core\Config\Entity\Query\Condition->compile() (line 39 of core/lib/Drupal/Core/Config/Entity/Query/Condition.php).
Create or edit a virtual event.
Test if variables are empty.
Code to fix
Needs review
1.0
Code
tostinni → changed the visibility of the branch 1.0.x to hidden.
Sorry for the commit against 1.0.x branch, here is the MR