Firebeetle:: Arduino IDE Setup failed, can't download: package_DFRobot_index.json

Following instructions as stated here: https://wiki.dfrobot.com/FireBeetle_Board_ESP32_E_SKU_DFR0654

At sub 8.2 Configure Arduino IDE:  https://wiki.dfrobot.com/FireBeetle_Board_ESP32_E_SKU_DFR0654#target_9 

Instructions tellme to download: https://download.dfrobot.top/FireBeetle/package_DFRobot_index.json into the IDE via FILE/Preferences.

An error occured, error text: 

"Some indexes could not be updated. Get "https://download.dfrobot.top/FireBeetle/package_DFRobot_index.json": tls: failed to verify certificate: x509: certificate has expired or is not yet valid: : https://download.dfrobot.top/FireBeetle/package_DFRobot_index.json"

Trying to open this file in a browser results in a certificate error (SSL_ERROR_BAD_CERT_DOMAIN)

The Certificate is issued to: “*.dfrobot.com.cn” but the domain name where the file should be downloaded from is “*.dfrobot.top”. So there is a domain mismatch.

Also the certificate is expired, validity until: Thu, 05 Nov 2020 03:54:06 GMT

Arduino IDE verrsion: 2.1.0