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Lesson 4.3

Fatal error: Uncaught Error: Call to a member function getAudioUrl() on null in /hosting/www/chineseffect.com/www/wp-content/plugins/chineseffect/library/chfx/widgets/RecognizeCharsExcercise.php:165 Stack trace: #0 [internal function]: chfx\widgets\RecognizeCharsExcercise->chfx\widgets\{closure}(NULL) #1 /hosting/www/chineseffect.com/www/wp-content/plugins/chineseffect/library/chfx/widgets/RecognizeCharsExcercise.php(167): array_map(Object(Closure), Array) #2 /hosting/www/chineseffect.com/www/wp-content/plugins/chineseffect/library/chfx/widgets/RecognizeCharsExcercise.php(100): chfx\widgets\RecognizeCharsExcercise->generateTask() #3 /hosting/www/chineseffect.com/www/wp-content/plugins/chineseffect/library/chfx/widgets/Widget.php(117): chfx\widgets\RecognizeCharsExcercise->configure(Array) #4 /hosting/www/chineseffect.com/www/wp-content/plugins/chineseffect/CHFXPlugin.php(118): chfx\widgets\Widget->configureFromTag('tags=4.1,4.2,4....') #5 [internal function]: CHFXPlugin->{closure}(Array) #6 /hosting/www/chineseffect.com/w in /hosting/www/chineseffect.com/www/wp-content/plugins/chineseffect/library/chfx/widgets/RecognizeCharsExcercise.php on line 165