Hello @razehrah,
I suppose this comes from Question: Problem with issuing SSL certificate under .ye domain
Keep in mind that PSL has been updated 3 days ago https://github.com/publicsuffix/list/pull/1189 and boulder (Let's Encrypt) has not been updated yet to use the updated PSL so it could take a while but @lestaff could give more info about this issue.
Edit: as usual, @_az is faster than me 
Cheers,
sahsanu