[TypeError] 
call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "showSortsContents" not found or invalid function name (0)
/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3389
#0: CAllMain->EndBufferContent
	/home/bitrix/www/bitrix/modules/main/classes/general/main.php:3347
#1: CAllMain->EndBufferContentMan
	/home/bitrix/www/bitrix/modules/main/include/epilog_after.php:46
#2: require(string)
	/home/bitrix/www/bitrix/modules/main/include/epilog.php:3
#3: require_once(string)
	/home/bitrix/www/bitrix/footer.php:4
#4: require(string)
	/home/bitrix/www/katalog/index.php:217
#5: include_once(string)
	/home/bitrix/www/bitrix/modules/main/include/urlrewrite.php:184
#6: include_once(string)
	/home/bitrix/www/bitrix/urlrewrite.php:2
----------