iCloud mail password is blank so i can’t send mail or use back-up

I keep getting this error for some reason and can’t shake it. I check the password for the iCloud it takes me to my profile when I click on the error provided hyperlink and it just keeps giving me the same issues. I cannot send mail out but can receive just fine. I cannot see how much iCloud data I have or manage it because of this. I’m not ultra tech savvy but I do have my A+ in hardware and software (might be old but I try to stay current). This is just really bugging the crap out of me that I can’t figure this one out.

you would think following these steps would resolve this but that is a serious no dice situation.

or

someone please help this one is a real groaner.