Older Samsung devices have issues with clean installs if data isn't properly wiped.
[UNOFFICIAL][PATCHED] LineageOS 14.1 for GT-E3G (gtel3g) – Build 20180419 lineage14120180419unofficialgtel3g patched
Based on the terminology used, you are looking for the Google Apps (GApps) package required for that specific build. Older Samsung devices have issues with clean installs
Here is the breakdown and the correct piece of software for lineage14120180419unofficialgtel3g: [UNOFFICIAL][PATCHED] LineageOS 14
Because the file you have is "patched," it implies this ROM likely includes a custom kernel or requires a custom recovery to flash the "patch" workaround for Samsung's locked bootloader security (Loki patch).
PASS! and the tablet will reboot.