Please be advised this is an English speaking forum. I’ve translated this post for you but please translate future messages, even if its through a tool like google translate.
I’ve seen a similar error previously, where the domain had been linked to a premium hosting account.
Hello, yes, that’s exactly it. I subscribed to an iFast plan and transferred my free InfinityFree domain to them. Then I cancelled the premium subscription and tried to switch back to the free version of InfinityFree, and that’s when the problem started. Do you know how I can recover my website? Thank you in advance.