Error log regarding hplip and epsonscan2

I just want to share highlighted errors from system logs, probably it could improve Ubuntu.

06:30:50 hpfax: [3889]: error: Failed to create /var/spool/cups/tmp/.hplip
06:29:47 kernel: ucsi_acpi USBC000:00: PPM init failed (-110)
06:28:55 gdm-session-wor: gkr-pam: unable to locate daemon control file
06:28:45 kernel: ucsi_ccg 0-0008: ucsi_ccg_init failed - -110
06:28:45 kernel: nvidia-gpu 0000:01:00.3: i2c timeout error e0000000
06:28:45 kernel:
06:28:44 systemd-udevd: /usr/lib/udev/rules.d/60-epsonscan2.rules:18 Invalid key/value pair, ignoring.
06:28:44 kernel: ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20201113/psobject-220)
06:28:44 kernel: x86/cpu: SGX disabled by BIOS

Not sure if this also related to the unknown error in gnome settings > printers that show a restart button without specific error message.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: hplip 3.20.3+dfsg0-2
ProcVersionSignature: Ubuntu 5.11.0-27.29~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-27-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
CupsErrorLog:

CurrentDesktop: ubuntu:GNOME
Date: Sat Aug 21 07:01:34 2021
InstallationDate: Installed on 2021-06-05 (76 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
Lpstat: device for L3110-Series: usb://EPSON/L3110%20Series?serial=58364E583638393351&interface=1
MachineType: HP HP ENVY Laptop 15-ep0xxx
Papersize: a4
PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/L3110-Series.ppd'] failed with exit code 2: grep: /etc/cups/ppd/L3110-Series.ppd: Permission denied
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-27-generic root=UUID=34001051-5122-4187-b21f-2032a99219e8 ro quiet splash vt.handoff=7
SourcePackage: hplip
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/29/2020
dmi.bios.release: 15.5
dmi.bios.vendor: AMI
dmi.bios.version: F.05
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 878E
dmi.board.vendor: HP
dmi.board.version: 18.32
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 18.32
dmi.modalias: dmi:bvnAMI:bvrF.05:bd12/29/2020:br15.5:efr18.32:svnHP:pnHPENVYLaptop15-ep0xxx:pvr:rvnHP:rn878E:rvr18.32:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP ENVY
dmi.product.name: HP ENVY Laptop 15-ep0xxx
dmi.product.sku: 16P91PA#AR6
dmi.sys.vendor: HP