Hi althafvly,
I appreciate your work and your maintenance of these old devices. I know you are pushing for official LineageOS 17.1 in the next few days, but these 17.1 builds are still unstable for me. I have flashed the latest build, lineage-17.1-20200606-UNOFFICIAL-surnia.zip and the build before that, and I am still having the issue where "unfortunately, the process com.android.phone has stopped" as soon as I touch the screen. The phone powers off and reboots to recovery. However, the phone will stay on and usable if a usb cord is attached. I have captured a log if that may help solve the problem.
https://drive.google.com/file/d/1Es2w7cZ6gCWGQub1qYCyDvlBoMCGdec7/view?usp=sharing