{"status":200,"data":[{"code":"400","text":"Failed to connect to server."},{"code":"401","text":"Failed to connect to database."},{"code":"402","text":"Failed to get current version number."},{"code":"403","text":"Failed to get textbook ID."},{"code":"405","text":"Failed to get username or password."},{"code":"406","text":"Fail to generate a new user. Please clear cache and restart the app."},{"code":"407","text":"Fail to generate a new user. Database error. Please contact our support team."},{"code":"408","text":"The user does not exist. Please sign up."},{"code":"409","text":"The password is incorrect."},{"code":"410","text":"Missing important parameters."},{"code":"411","text":"Failed to add points to your account. Please contact support team."},{"code":"412","text":"Invalid promo code."},{"code":"413","text":"Sorry that the promo code has already expired."},{"code":"414","text":"You have used the promo code before. It cannot be used again."},{"code":"415","text":"Failed to update purchase status. Please contact support team."},{"code":"416","text":"Failed to submit your feedback. Please try again later."},{"code":"417","text":"You have reached the daily limit."}]}