Problems like this can best be communicated to the developers by completing a support ticket here:
https://support.chess.com/customer/portal/emails/new
The more detail you can include when describing your problem the better, as it will help them diagnose it more accurately.
Hi, It seems that for around the last week the lessons section of the app days 'daily lessons limit has been reached', it says this all the time despite no lessons having been done. Are any other users experiencing this problem? I've tried uninstalling and reinstalling the app which did not resolve it. How do we let the app developers know that the lessons are currently broken?