Having problem with MX records and SPF

Hi there, I have been facing a problem that my zoho mail doesn't receive mail. See Error in below

The MX Records of your domain(s) mydomain.com are not pointed to Zoho and you may not receive emails in Zoho

SPF entries in your domains DNS are not configured to match with undefined. Configure SPF to for better email deliverability.

I already setup the mx and spf records earlier in zoho and everythings were working. This issues came out last 2 days and I tried removing and adding mx and spf records again. But it is still not working..

Thanks for your help.. Any Idea ?

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