EPSON WF 3520 driver problem - PpdFiles: Error

[Galk32]

After an upgrade from Ubuntu 18.04.2 to 19.10 my printer EPSON WF-3520 won't work. Same problem upgrading from 19.10 to 20.01. It is recognized on the printer menu but after finding the proper driver from EPSON it gives en error in the process. There is a ppdfiles:error
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The actual problem is that despite the fact that the printer is automatically found correctly as an Espon wf 3520 it is not working, neither the test page nor other documents.

I have then removed the printer and add a new one. Again the printer (network one) had been found and when it tries to find a driver it opens a menu Seiko-Epson driver, i choose yes and apply and then in the end it gives me an error, I'll attach a print screen.

The driver which the system is using grabs from epson is the "epson-201212w"

i have also tried the https://wiki.ubuntu.com/DebuggingPrintingProblems with no result.
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ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: cups 2.2.12-2ubuntu1.1
ProcVersionSignature: Ubuntu 5.3.0-51.44-generic 5.3.18
Uname: Linux 5.3.0-51-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.8
Architecture: amd64
CupsErrorLog:
 E [12/May/2020:10:44:55 +0300] [Client 16] Returning IPP server-error-not-accepting-jobs for Print-Job (ipp://localhost/printers/EPSON_WF_3520_Series) from localhost.
 E [12/May/2020:10:45:59 +0300] [Client 22] Returning IPP server-error-not-accepting-jobs for Print-Job (ipp://localhost/printers/EPSON_WF_3520_Series) from localhost.
 E [12/May/2020:11:23:51 +0300] [Client 16] Returning IPP server-error-not-accepting-jobs for Print-Job (ipp://localhost/printers/EPSON_WF_3520_Series) from localhost.
CurrentDesktop: ubuntu:GNOME
Date: Tue May 12 12:28:09 2020
InstallationDate: Installed on 2019-12-21 (142 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
Lpstat: device for EPSON_WF_3520_Series: ///dev/null
MachineType: Dell Inc. Precision M4600
Papersize: a4
PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/EPSON_WF_3520_Series.ppd'] failed with exit code 2: grep: /etc/cups/ppd/EPSON_WF_3520_Series.ppd: Permission denied
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-51-generic root=UUID=a5d00ddf-aa19-41bf-8139-ac7c317aa04c ro quiet splash vt.handoff=7
SourcePackage: cups
UpgradeStatus: Upgraded to eoan on 2020-05-04 (7 days ago)
dmi.bios.date: 09/14/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A19
dmi.board.name: 08V9YG
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA19:bd09/14/2018:svnDellInc.:pnPrecisionM4600:pvr01:rvnDellInc.:rn08V9YG:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Precision M4600
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.