Update issues on Zorin )

Hello to everyone. Today i saved an old notebook AcerAspire 1680 with this system Information.
Memory 1.2 GB
Processor Intel® Pentium® M processor 1.60GHz
Graphic Gallium 0.4 on ATI RV350
OS 32 bit
I had to force the PAE in order to installa the OS.
I’m now facing an issue during the upgarde of the software or simply update the actual software.
While updating by using the OS software, does not let me continue and is telling me that i have internet problems.
I decide to try by updating trought Terminal by using the command sudo apt-get upgrade. That looked like to work till this error message appear
“”(gtk-update-icon-cache-3.0:31898): GdkPixbuf-WARNING **: Cannot open pixbuf loader module file ‘/usr/lib/i386-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders.cache’: No such file or directory

This likely means that your installation is broken.
Try running the command
gdk-pixbuf-query-loaders > /usr/lib/i386-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders.cache
to make things work again for the time being.""
I tried to do what he asked, but permission was denied.

Any suggestions?

Thanks in advance and sorry for my English…

Please try sudo apt dist-upgrade
If that works, then try sudo apt-get upgrade && sudo apt update