Automatics SDF downloading failed

[psycoperl]

Good Morning

I am receiving the following error when I start MakeMKV

Automatic SDF downloading is disabled or failed.
DEBUG: Code 152 at )Sk0=`x9vK.<!TEW:213144911

I checked the MakeMKV Preferences and under General > Online Updates "Enable Internet Access" is checked,

[Coopervid]

Check your firewall settings.

[psycoperl]

I do not have a firewall, other than my normal router.

[Billycar11]

Normal steps are
Change your dns away from your isp dns
Check geo blocking servers are in Russia so that can't be blocked.
Use a VPN if none of that works