DEBUG (1-10): Cache is active
DEBUG (1-10): CacheExpireTime: 5 minutes
DEBUG (1-10): try to retieve this url: https://opendata.mkrf.ru/v2/events/$?l=10
DEBUG: wp_safe_remote_get to https://opendata.mkrf.ru/v2/events/$?l=10
DEBUG: arguments: {"timeout":5}
DEBUG: no data received: check url of json-feed
EMPTY api-answer: No JSON received — is the API down? Check the URL you use in the shortcode!