Can't Change Permissions of Files in Home Folder without Sudo
It seems to be a permission issue. From the output i can see, that the file is owned by root. Only from the root account (but including with sudo) you can make changes to the file's permissions. You need the change the ownership of the file. Run this command in the Terminal to take ownership of all the files in your home directory:
sudo chown -R $USER:$USER $HOME