Help. "The MX Records of your domain abordotattoo.com.ar are not pointed to Zoho and you may not receive emails in Zoho."

Help. "The MX Records of your domain abordotattoo.com.ar are not pointed to Zoho and you may not receive emails in Zoho."

Hi.

I've been using Zoho Mail for about two years with my domain www.abordotattoo.com.ar and up until yesterday everything worked fine, but since yesterday I can't receive emails (I can send them though) and this warning keep showing up: "The MX Records of your domain abordotattoo.com.ar are not pointed to Zoho and you may not receive emails in Zoho."

I have not made any change on my domain or webhosting. I've checked and my MX Records are they are pointing to mx.zoho.com.

My webhosting is 000webhost.

What can I do to fix this issue?

Thanks.