Tvheadend

Encountered some crash issue, about once a day.
journalctl log attached below.
Question: what could cause such crash error? how could i further troubleshoot and fix?

Thank you!

July 25 21:29:30 rec-pc tvheadend²³⁵⁹¹: CRASH: Signal: 11 in PRG: /usr/bin/tvheadend (4.3-1802~g6be300c43) [921a17bbb26f4ae358b76c511e7122722ccce354] CWD: /
July 25 21:29:30 rec-pc tvheadend²³⁵⁹¹: CRASH: Fault address (nil) (N/A)
July 25 21:29:30 rec-pc tvheadend²³⁵⁹¹: CRASH: Loaded libraries: linux-vdso.so.1 /usr/lib/x86_64-linux-gnu/libdvbcsa.so.1 /usr/lib/x86_64-linux-gnu/libssl.so.1.1 /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1 /lib/x86_64-linux-gnu/libz.so.1 /usr/lib/x86_64-linux-gnu/libpcre2-8.so.0 /usr/lib/x86_64-linux-gnu/liburiparser.so.1 /usr/lib/x86_64-linux-gnu/libavahi-common.so.3 /usr/lib/x86_64-linux-gnu/libavahi-client.so.3 /lib/x86_64-linux-gnu/libdbus-1.so.3 /lib/x86_64-linux-gnu/libdl.so.2 /lib/x86_64-linux-gnu/libpthread.so.0 /lib/x86_64-linux-gnu/libm.so.6 /lib/x86_64-linux-gnu/librt.so.1 /lib/x86_64-linux-gnu/libmvec.so.1 /usr/lib/x86_64-linux-gnu/libstdc++.so.6 /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libsystemd.so.0 /lib64/ld-linux-x86-64.so.2 /lib/x86_64-linux-gnu/libgcc_s.so.1 /lib/x86_64-linux-gnu/liblzma.so.5 /usr/lib/x86_64-linux-gnu/liblz4.so.1 /lib/x86_64-linux-gnu/libgcrypt.so.20 /lib/x86_64-linux-gnu/libgpg-error.so.0 /lib/x86_64-linux-gnu/libnss_compat.so.2 /lib/x86_64-linux-gnu/libnss_nis.so.2 /lib/x86_64-linux-gnu/libnsl.so.1
July 25 21:29:30 rec-pc tvheadend²³⁵⁹¹: CRASH: Register dump [23]: 0000000000000000000000000000000007e0f2000000000000007fc42aa50ec000007fc4001a2d5000007fc3f33b854000000000000009db00007fc40004df1074634f282039319a0000000000000000000000000000010000007fc3e001103000007fc4001a2d5074634f2820393032000000000000006500007fc3f33b841800007fc42b7e7fa00000000000010246002b0000000000330000000000000000000000000000000dfffffffe7ffbba130000000000000000
July 25 21:29:30 rec-pc tvheadend²³⁵⁹¹: CRASH: STACKTRACE
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x562e4a44153d 0x562e4a22c000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x7fc42b7f0890 0x7fc42b7de000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: pthread_mutex_lock+0x0 (/lib/x86_64-linux-gnu/libpthread.so.0)
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x562e4a52db25 0x562e4a22c000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x562e4a4bb341 0x562e4a22c000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x562e4a4d3a03 0x562e4a22c000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x562e4a4c9dd2 0x562e4a22c000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x562e4a4ca237 0x562e4a22c000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x562e4a4c29fb 0x562e4a22c000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x562e4a4c5fac 0x562e4a22c000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x562e4a401988 0x562e4a22c000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: ??:0 0x7fc42b7e56db 0x7fc42b7de000
July 25 21:29:31 rec-pc tvheadend²³⁵⁹¹: CRASH: clone+0x3f (/lib/x86_64-linux-gnu/libc.so.6)