Error during assigning variable to particular object (e.g. – Button, Numeric display) in DigiVis 500!

DEAR ALL

I MADE REDUNANT IN DIGIVIS .AS PER MY CONFIGURATION OPC SERVER IS COMMUNICATING WELL AND ALSO I AM ASSIGNING VARIABLE INTO DIGIVIS ALSO COMPLETED . BUT PROBLEM IS WHEN I AM ASSIGNING PARTICULAR VARIABLE INTO THE OBJECT IT SHOWS ERROR . I CANT PREDICT WHY IT SHOWS? EVERYTHING IS WORKING CORRECTLY WHY IT SHOWS THIS TYPE OF ERROR ?

THEN CODESYS DOES'T CREAT LOG FILES . eg:c:\programdata\gate files\log. no files is stored in that directory.

here i am attached files for your refference

please guide if anybody know