can't upgrade from 0.91.2 to 0.92.0

user

Hi! I can not upgrade my repetier-server.
sudo dpkg -i Repetier-Server-0.92.0-Linux.deb
(Reading database ... 51658 files and directories currently installed.)
Preparing to unpack Repetier-Server-0.92.0-Linux.deb ...
Uninstall Repetier-Server
Removed /etc/systemd/system/multi-user.target.wants/RepetierServer.service.
Unpacking repetier-server (0.92.0) over (0.91.2) ...
dpkg: error processing archive Repetier-Server-0.92.0-Linux.deb (--install):
unable to make backup link of './usr/local/Repetier-Server/www/js/angular-i18n/angular-locale_ast-es.js' before installing new version: Operation not permitted
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Install Repetier-Server
You may see warnings about groups. These can be ignored.
The user repetierserver' is already a member oftty'.
The user repetierserver' is already a member ofdialout'.
adduser: The group intserial' does not exist.<br/>adduser: The groupugpio' does not exist.
The user repetierserver' is already a member ofgpio'.
Created symlink /etc/systemd/system/multi-user.target.wants/RepetierServer.service → /lib/systemd/system/RepetierServer.service.
Processing triggers for systemd (232-25+deb9u11) ...
Errors were encountered while processing:

Repetier-Server-0.92.0-Linux.deb

If i use web-face it not work too. I use the server in raspberry pi 3.

Repetier

Looks like installer had a problem with one file. First I‘d retry and then delete the file manually and then retry. Could be a corrupted filesystem preventing file copy/delete in that case try a filesystem check to fix it.

you should always use the shutdown function in server main menu before unpowering, also direct unpowering often works fine it van always vause problems.