[ArgumentCountError] 
Too few arguments to function checkVirtualExpoListener(), 2 passed in /home/miroplat/allnovators.ru/docs/presentation-platform/virtual-exhibition/participant.php on line 17 and exactly 3 expected (0)
/home/miroplat/allnovators.ru/docs/content/function.php:933
#0: checkVirtualExpoListener(NULL, integer)
	/home/miroplat/allnovators.ru/docs/presentation-platform/virtual-exhibition/participant.php:17