Путешествия

[TypeError] 
Cannot access offset of type string on string (0)
/home/bitrix/ext_www/online-london.com/local/templates/main/components/only/elements.detail/course/template.php:17
#0: include
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/component_template.php:790
#1: CBitrixComponentTemplate->__IncludePHPTemplate
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/component_template.php:885
#2: CBitrixComponentTemplate->IncludeTemplate
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/component.php:776
#3: CBitrixComponent->showComponentTemplate
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/component.php:716
#4: CBitrixComponent->includeComponentTemplate
	/home/bitrix/ext_www/online-london.com/local/components/only/elements.detail/class.php:67
#5: OnlyElementsDetailComponent->executeComponent
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/component.php:660
#6: CBitrixComponent->includeComponent
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/main.php:1072
#7: CAllMain->IncludeComponent
	/home/bitrix/ext_www/online-london.com/local/templates/main/components/only/elements/courses/detail.php:5
#8: include(string)
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/component_template.php:790
#9: CBitrixComponentTemplate->__IncludePHPTemplate
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/component_template.php:885
#10: CBitrixComponentTemplate->IncludeTemplate
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/component.php:776
#11: CBitrixComponent->showComponentTemplate
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/component.php:716
#12: CBitrixComponent->includeComponentTemplate
	/home/bitrix/ext_www/online-london.com/local/components/only/elements/class.php:81
#13: OnlyElementsComponent->executeComponent
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/component.php:660
#14: CBitrixComponent->includeComponent
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/classes/general/main.php:1072
#15: CAllMain->IncludeComponent
	/home/bitrix/ext_www/online-london.com/courses/index.php:32
#16: include_once(string)
	/home/bitrix/ext_www/online-london.com/bitrix/modules/main/include/urlrewrite.php:184
#17: include_once(string)
	/home/bitrix/ext_www/online-london.com/bitrix/urlrewrite.php:2
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