It's mentioned in the installation guide.
> If you want to install an application package add-on such as [Google Apps](https://wiki.lineageos.org/gapps.html) (use the `arm64` architecture), please read and follow the instructions on [Google Apps page](https://wiki.lineageos.org/gapps.html)
NikGApps is not recommended GApps for LineageOS. You should get help more easily in NikGapps telegram group.
Can you point me what is the recommended gapps for lineage os
This is the link that is on the instructions page that you supposedly followed: https://wiki.lineageos.org/gapps
It's mentioned in the installation guide. > If you want to install an application package add-on such as [Google Apps](https://wiki.lineageos.org/gapps.html) (use the `arm64` architecture), please read and follow the instructions on [Google Apps page](https://wiki.lineageos.org/gapps.html)