Check if the events for a given section exist - else return an empty array

Author: Webklex

src/Client.php

@@ -655,7 +655,10 @@ public function getDefaultMessageMask(): string {
  * @return array
  */
  public function getDefaultEvents($section): array {
- return $this->events[$section];
+ if (isset($this->events[$section])) {
+ return is_array($this->events[$section]) ? $this->events[$section] : [];
+ }
+ return [];
  }
 
  /**