Pihole crashes daily

[2020-06-05 00:11:39.855 21532] Note: FTL forked to handle TCP requests

[2020-06-05 00:21:37.355 5332] !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[2020-06-05 00:21:37.355 5332] ----------------------------> FTL crashed! <----------------------------

[2020-06-05 00:21:37.355 5332] !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[2020-06-05 00:21:37.355 5332] Please report a bug at GitHub · Where software is built

[2020-06-05 00:21:37.356 5332] and include in your report already the following details:

[2020-06-05 00:21:37.356 5332] FTL has been running for 41619 seconds

[2020-06-05 00:21:37.356 5332] FTL branch: master

[2020-06-05 00:21:37.356 5332] FTL version: v5.0

[2020-06-05 00:21:37.356 5332] FTL commit: 3d7c095

[2020-06-05 00:21:37.356 5332] FTL date: 2020-05-10 18:58:38 +0100

[2020-06-05 00:21:37.356 5332] FTL user: started as pihole, ended as pihole

[2020-06-05 00:21:37.356 5332] Compiled for armhf (compiled on CI) using arm-linux-gnueabihf-gcc (Debian 6.3.0-18) 6.3.$

[2020-06-05 00:21:37.356 5332] Received signal: Segmentation fault

[2020-06-05 00:21:37.357 5332] at address: 0x636a7300

[2020-06-05 00:21:37.357 5332] with code: SEGV_MAPERR (Address not mapped to object)

[2020-06-05 00:21:37.357 5332] Backtrace:

[2020-06-05 00:21:37.358 5332] B[0000]: 0x4488e4, /usr/bin/pihole-FTL(+0x238e4) [0x4488e4]

[2020-06-05 00:21:37.358 5332] B[0001]: 0x76dce130, /lib/arm-linux-gnueabihf/libc.so.6(__default_rt_sa_restorer+0) [0x7$

[2020-06-05 00:21:37.358 5332] B[0002]: 0x46fa22, /usr/bin/pihole-FTL(iface_check+0x35) [0x46fa22]

[2020-06-05 00:21:37.358 5332] B[0003]: 0x45d986, /usr/bin/pihole-FTL(receive_query+0x1f1) [0x45d986]

[2020-06-05 00:21:37.358 5332] B[0004]: 0x46cb52, /usr/bin/pihole-FTL(+0x47b52) [0x46cb52]

[2020-06-05 00:21:37.358 5332] B[0005]: 0x46dfcc, /usr/bin/pihole-FTL(main_dnsmasq+0xc07) [0x46dfcc]

[2020-06-05 00:21:37.358 5332] B[0006]: 0x43eda8, /usr/bin/pihole-FTL(main+0xa7) [0x43eda8]

[2020-06-05 00:21:37.358 5332] B[0007]: 0x76db8718, /lib/arm-linux-gnueabihf/libc.so.6(__libc_start_main+0x10c) [0x76db$

[2020-06-05 00:21:37.358 5332] ------ Listing content of directory /dev/shm ------

[2020-06-05 00:21:37.359 5332] File Mode User:Group Filesize Filename

[2020-06-05 00:21:37.359 5332] rwxrwxrwx root:root 260 .

[2020-06-05 00:21:37.359 5332] rwxr-xr-x root:root 4K ..

[2020-06-05 00:21:37.359 5332] rw------- pihole:pihole 4K FTL-per-client-regex

[2020-06-05 00:21:37.360 5332] rw------- pihole:pihole 20K FTL-dns-cache

[2020-06-05 00:21:37.360 5332] rw------- pihole:pihole 29K FTL-overTime

[2020-06-05 00:21:37.360 5332] rw------- pihole:pihole 918K FTL-queries

[2020-06-05 00:21:37.361 5332] rw------- pihole:pihole 20K FTL-upstreams

[2020-06-05 00:21:37.361 5332] rw------- pihole:pihole 643K FTL-clients

[2020-06-05 00:21:37.361 5332] rw------- pihole:pihole 66K FTL-domains

[2020-06-05 00:21:37.362 5332] rw------- pihole:pihole 33K FTL-strings

[2020-06-05 00:21:37.362 5332] rw------- pihole:pihole 12 FTL-settings

[2020-06-05 00:21:37.362 5332] rw------- pihole:pihole 124 FTL-counters

[2020-06-05 00:21:37.363 5332] rw------- pihole:pihole 28 FTL-lock

[2020-06-05 00:21:37.363 5332] ---------------------------------------------------

debug token is https://tricorder.pi-hole.net/9kasd6z51e

Yes, I am using Cloudflare but DNSSEC is not checked.