Try this:
Enable create log for app: Settings->User Preferences.
On General tab check option: "Flush Script Log Files After Each Write"
Then in Your Script paste this:
Log:
LOAD RowNo() as ID,
@1 as DataAkt,
@2 as HourAct
FROM
(txt, unicode, no labels, delimiter is ' ', msq); //Change Destination of log file
Makt:
Load Max(ID) as Max Resident Log;
LET vMax = Peek('Max','0','Makt');
LET vData = Peek('DateAct',$(vMax),'Log');
DROP Table Makt;
END Sub
Then create a textbox item, and in the text field paste this:
= 'Last data update: ' & only({<ID={'$(vMax)'}>}DateAct) & ' ' & only({<ID={'$(vMax)'}>}HourAct)
