Ledrunner - 2015-06-12

Hello gentlemens. Have some problem.
VAR RETURN
vent: REAL;
END VAR


I use rectangle in webvisu sourse area and on mouse click options, then -> num_pad - > write varible -> vent;
After uploading sourse code, everything work is fine. But when I turn off/turn on the Raspberry power, have a massage in codesys than no any aplication in device, and code and webvisu doesn't work.... If I delete rectangle and retain variable - everything is fine. Help me please...