Warning: Trying to access array offset on value of type null in /var/web/lln-php/Presenter.php on line 248 Deprecated: explode(): Passing null to parameter #2 ($string) of type string is deprecated in /var/web/lln-php/Presenter.php on line 251 Warning: Trying to access array offset on value of type null in /var/web/lln-php/Presenter.php on line 260