Hi community,

This is my first reach out to you. I have not update my machine for a long
time and have no reached a point where I can't install or upgrade packages.
My first concern is to update portage, however I get the error below error.
Does anybody have any suggestions how I could progress with my machine
update?

# emerge --oneshot sys-apps/portage

 * IMPORTANT: 15 news items need reading for repository 'gentoo'.
 * Use eselect news read to view new items.

Calculating dependencies... done!

!!! All ebuilds that could satisfy
">=app-portage/gemato-14.5[python_targets_pypy3(-)?,python_targets_python3_10(-)?,python_targets_python3_11(-)?]"
have been masked.
!!! One of the following masked packages is required to complete your
request:
- app-portage/gemato-9999::gentoo (masked by: EAPI 8)
- app-portage/gemato-20.4::gentoo (masked by: EAPI 8)
- app-portage/gemato-20.2::gentoo (masked by: EAPI 8)
- app-portage/gemato-20.1::gentoo (masked by: EAPI 8)

The current version of portage supports EAPI '7'. You must upgrade to a
newer version of portage before EAPI masked packages can be installed.
(dependency required by "sys-apps/portage-3.0.45.3-r2::gentoo" [ebuild])
(dependency required by "sys-apps/portage" [argument])
For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.