The tokens for [MonthHeader] contain errors
Cause : Q++ noticed that the current GridTemplate contains MonthHeader tokens, but that there are errors in the tokens text specified in the corresponding options in the GridOptions property. The errors tracked by Q++ here are usually missing or repeated braces such as : "[[1Mmmm] [1yyyy]" or "[1Mmmm[1yyyy]".
Consequences : A run-time error will be generated when converting the MonthHeader token mentioned in this message's.
●Change [MonthHeaders] Options : opens the GridOptions property editor so that you can change the settings to use to convert the MonthHeader token mentioned in this message.