This is a warning that your home directory is writeable to by anyone in your group plus anyone else at all (i.e. world). The 777
at the end of the mode is indicating the directory is writable by all of yourself (owner), the group plus world. Normally it should end with 755
or 750
depending on how open you want your home directory to be.
It is not going to stop anything working but it's a legitimate warning as you really don't want your home directory open like this.
Easiest way to fix it is to execute command such as:
chmod go-w /home/nazar
which will remove write permission for group and others (world).