Master Password

Hi guys...

I am a newbie over here! So when I 1st log in in steemit I’ve used my private password to do it. But now when I want to update my profile (add profile pic and write bio) it asks for me to log in again with my master password... whichever key I use it says “Missing Authority Person” and appeared a “server returned error”.

I’ve tried on my iphone and imac... and is the same on both! Can someone help me ? 🙈🙈🙈 what am I doing wrong ?

TIA xx