500 Error decoding json data: Syntax error - JDownloads

500 Error decoding JSON data: Syntax error
\administrator\components\com_fields\views\fields\view.html.php:81
Call stack
#	Function	Location
1	()	JROOT\administrator\components\com_fields\views\fields\view.html.php:81
2	FieldsViewFields->display()	JROOT\libraries\src\MVC\Controller\BaseController.php:672
3	Joomla\CMS\MVC\Controller\BaseController->display()	JROOT\administrator\components\com_fields\controller.php:57
4	FieldsController->display()	JROOT\libraries\src\MVC\Controller\BaseController.php:710
5	Joomla\CMS\MVC\Controller\BaseController->execute()	JROOT\administrator\components\com_fields\fields.php:29
6	require_once()	JROOT\libraries\src\Component\ComponentHelper.php:402
7	Joomla\CMS\Component\ComponentHelper::executeComponent()	JROOT\libraries\src\Component\ComponentHelper.php:377
8	Joomla\CMS\Component\ComponentHelper::renderComponent()	JROOT\libraries\src\Application\AdministratorApplication.php:101
9	Joomla\CMS\Application\AdministratorApplication->dispatch()	JROOT\libraries\src\Application\AdministratorApplication.php:159
10	Joomla\CMS\Application\AdministratorApplication->doExecute()	JROOT\libraries\src\Application\CMSApplication.php:203
11	Joomla\CMS\Application\CMSApplication->execute()	JROOT\administrator\index.php:51

[{host: "ceskatelevize.cz", selector: "#ctPlayer1", capture: true},…]
0: {host: "ceskatelevize.cz", selector: "#ctPlayer1", capture: true}
1: {host: "dailymotion.com", selector: "#player-body", capture: true}
2: {host: "netflix.com", selector: "html", capture: true}
3: {host: "nicovideo.jp", selector: ".PlayerContainer", capture: true}
4: {host: "kvs-demo.com", selector: "#kt_player", capture: true}
5: {host: "periscope.tv", selector: ".EventHandler-Layer", capture: true}
6: {host: "pluralsight.com", selector: ".player-wrapper", capture: false}
7: {host: "pornhub.com", selector: "#main-container .video-wrapper #player", capture: false}
8: {host: "primevideo.com", selector: "#dv-web-player", capture: true}
9: {host: "rutube.ru", selector: ".video-js", capture: true}
10: {host: "ruv.is", selector: ".video-js", capture: true}
11: {host: "ted.com", selector: "html", capture: false}
12: {host: "twitch.tv", selector: ".persistent-player", capture: false}
13: {host: "vimeo.com", zIndex: "300", selector: ".player", capture: false}
14: {host: "yandex.ru", selector: ".player-container", capture: true}
15: {host: "youtube.com", zIndex: "10"}

**Ошибки в языковых файлах**
**Нет**