Error in app: Data warning in table 'schedule'

[iovereem]

simpleWarning: Expecting numeric in F581 / R581C6: got '?'

[sebkopf]

thanks @iovereem ! should be fixed

[sebkopf]

@sebkopf : don't let expecting numeric errors block the app if it's avoidable (i.e. just turn to NA and move on)