Yesterday I registered an account and used coda for the first time, but today when I accessed yesterday’s document again, it said that the document was read-only and not editable, I don’t know what the problem is, I tried restarting my browser and creating a new blank document (still not editable), but the problem has not been solved!
Bottom right of your screen is a 
. User that to contact support, and provide them with the error code.
I’m using the web version of coda and I don’t see the question mark in the bottom right corner of the screen
Hi @fangweichao936 and welcome to the Coda Community!
@Piet_Strydom meant this question mark:
You can also find it outside your doc at your workspace page:
Please double-check if you can find it and let us know if you need any further help.
Jannis