can´t receive any mail!!

can´t receive any mail!!

Hi, I have a free hosting account in 00webhost.com,  I bought a domain from godaddy and a year ago I setup the email in zoho. Everythinmg was working fine until today, that I realized I can´t receive any email. I checked the wbhost site and the mx record are set to mx2.zoho.com. In this webhost site I can´t set 2 mx records. I also checked godaddy.com, and the servers are:
 ns01.000webhost.com
ns02.000webhost.com

I tried sending an email from another account and got this message "

Delivery to the following recipient failed permanently:

 

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain  by aspmx.l.google.com . [2607:f8b0:400d:c09::1b].

The error that the other server returned was:
550-5.1.1 The email account that you tried to reach does not exist. Please try
550-5.1.1 double-checking the recipient's email address for typos or
550-5.1.1 unnecessary spaces. Learn more at
550 5.1.1 http://support.google.com/mail/bin/answer.py?answer=6596 f31si11729267qkh.15 - gsmtp


I also checked in mxtools and got this:

Mail Server

mx:

Pref Hostname IP Address TTL
0 mx2.zoho.com 165.254.168.50 48 hrs

smtp:mx2.zoho.com


Category Host Result
smtp mx2.zoho.com OK - 165.254.168.50 resolves to mx.zohomail.com  More Info
smtp mx2.zoho.com OK - Reverse DNS is a valid Hostname  More Info
smtp mx2.zoho.com OK - Reverse DNS matches SMTP Banner  More Info
smtp mx2.zoho.com OK - Supports TLS.  More Info
smtp mx2.zoho.com 0.718 seconds - Good on Connection time  More Info
smtp mx2.zoho.com OK - Not an open relay.  More Info
smtp mx2.zoho.com 3.042 seconds - Good on Transaction Time  More Info

spf:osochascoso.com


Category Host Result
spf .com No records found  More Info

I need help please, I don´t know what to do.

Best regards