Error on email translations

[JRodm]

Hello,

I am getting a message saying that an email directory for my language "mx" exists, but that there is none for the predetermined language (en) in themes/classic/mails

I am getting 5 of those same warnings for:

themes/classic/mails

themes/classic/modules/ps_emailsubscription/mails

themes/classic/modules/referralprogram/mails

themes/classic/modules/ps_emailalerts/mails

themes/classic/modules/followup/mails

Any idea on what to do to fix this?

Thanks!