Hello vaikus84,
Thank you for reporting.
That is showing up whenewer 'gksudo -g' is being used to give elevated user permissions.
-g is unnecessary option here
It's used to disable the "locking" of the keyboard, mouse, and focus done by the program when asking for a password.
In other words, when -g is used it will prevent the user from changing to another window until the the password is entered or canceled.
This command will 'fix' the 'issue'
sudo sed -i 's/gksudo[ ]-\g/gksudo/g' /usr/scripts/clean/*