A litte bug

Hi!
I found bug in WInSCP v.3.6.7(build241) and when I synchronize browsing and watch on remonte server some files start1.htm then was message box error and isn't any posiblity to close it, error apears all time.

I'm sorry but I do not understand your problem. Can you provide me step by step description of what you are doing and what goes wrong?