I would start over from a fresh install. Just backup your data and wipe the partition.
Your processor is Silvermont according to this https://en.wikipedia.org/wiki/List_of_Intel_Pentium_microprocessors#"Bay_Trail-M"_(22_nm)
Grab this stage3 from build.funtoo.org - funtoo-current/x86-64bit/intel64-silvermont/2017-12-09/stage3-intel64-silvermont-funtoo-current-2017-12-09.tar.xz
these are the settings already active in the stage3 so no need to set them by hand
add only these settings to the make.conf:
run these commands:
update your system:
emerge lxde-meta:
continue the installation according to:
https://www.funtoo.org/Install#Configuring_your_system
report back here how it went