Do HMI Programs can be possibly corrupt?

[volksian 0]

Hi, In my HMI program, using "go to screen" buttons results to "screen not defined" in my HMI panel (when press). Screen just got dark. I'm a little confused since the set up with the correct one and others are exactly the same. But they did have different results. Would it be possible that HMI programs can be affected by virus or something? I'm just having my pilot program here. I'm using FL5070T series from Renu Electronics. Kindly help.

[panic mode 246]

do you have virues on your computer? remove them...! there is tons of AV utilities and many are free. i have not used that specific product but message tells me that target screen does not exist. you need to create it. maybe this used to work but you renamed or renumbered screens so screen name/number in the navigation button need to be updated.