Full error message cannot be shown because there are missing parameters in the URL. Please
follow the full link from the developer tool logs.
cannot get grid to draw rows when it is in the middle of drawing rows.
Your code probably called a grid API method while the grid was in the render stage.
To overcome this, put the API call into a timeout, e.g. instead of api.redrawRows(), call setTimeout(function() { api.redrawRows(); }, 0).
To see what part of your code that caused the refresh check this stacktrace.
To show this error text in the dev console, import the ValidationModule.