DKIM Validation on Digital Ocean

Hello =) ...

I am setting up the e-mails with my zoho account...

I have copy and pasted my DKIM authentication keys with my DNS manager (Digital Ocean), I aquired my domain with GoDaddy. Just copy pasted the generated key on the zoho mail manager.

I think the keys are well configurated but I am still seeing the error messages from DKIM configuration.

I don't know hat I am doing wrong, I think it has something to do with Some digital Ocean restriction maybe. Or maybe a Rails restriction, I am using Ruby on Rails. Thank you, =)