Cups can not print with "filter failed" error just after ghostcript update

[Dr Anirban Mitra]

Cups can not print with filer failed message

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: cups 2.2.7-1ubuntu2.2
ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18
Uname: Linux 4.15.0-45-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Feb 28 20:31:53 2019
InstallationDate: Installed on 2018-06-01 (272 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Lpstat: device for EPSON_M105_Series: usb://EPSON/M105%20Series?serial=574C51593030393431
MachineType: HPE ML10Gen9
Papersize: a4
PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/EPSON_M105_Series.ppd'] failed with exit code 2: grep: /etc/cups/ppd/EPSON_M105_Series.ppd: Permission denied
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-45-generic root=/dev/mapper/ubuntu--vg-root ro nosplash
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/27/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.003
dmi.board.asset.tag: (null)
dmi.board.name: ML10Gen9
dmi.board.vendor: HPE
dmi.board.version: (null)
dmi.chassis.asset.tag: (null)
dmi.chassis.type: 3
dmi.chassis.vendor: HPE
dmi.chassis.version: (null)
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.003:bd07/27/2016:svnHPE:pnML10Gen9:pvr(null):rvnHPE:rnML10Gen9:rvr(null):cvnHPE:ct3:cvr(null):
dmi.product.family: (null)
dmi.product.name: ML10Gen9
dmi.product.version: (null)
dmi.sys.vendor: HPE