I also had an error like that briefly but it goes away just choosing the alternate
I heard about martin system about 20 years ago, never heard anyone getting anywhere with it. There's no practical advantage from using it, false confidence and quite likely losses from that, there are people who study the maths and probability behind systems and could give you an answer on it. The main appeal is its a simple idea and system to follow, its a dream but not a reality.
The animated numbers mystery pops up maybe every week, this isn't the only website not to give an actual live link to a database via a gif its a common thing. I agree its not deceptive really,
heres another site like that and not linked directly except someone might update the site to alter rates occasionally.
Even I had one or two accounts with referrals which I don't know the password and forgot the email as well.
In 2013 I swear I had an account here that was only kept via a browser cookie, it didnt have an email. Seem to remember that being a thing and I must have done this a few places back then. Of course it didnt matter the BTC price was 100 dollar and they probably only had less 0.03 balance in there and who cares about that right..