I have just gone back to the start when i first received the message, this was on the 7th April the message said nextstep has sent you a message, i read the message and looked at the picture. When i went back into the message the next day i had a screen come up saying ( cannot locate the item you are trying to view) error code 2s136/c contact us. But i did not get any further i don't know if this will help
Regards