Tvheadend

Hello,

This is what I got in syslog when try to access its webpage or connect with client:

2019-02-04 05:55:40.038 [ NOTICE] START: HTS Tvheadend version 4.3-1733~g7d3aa1194 started, running as PID:19298 UID:111 GID:116, CWD:/root CNF:/home/hts/.hts/tvheadend
2019-02-04 05:55:40.186 [ ALERT] CRASH: Signal: 11 in PRG: /usr/bin/tvheadend (4.3-1733~g7d3aa1194) [f7f93262f2f82f9a3652b8f29661f4012c01fb92] CWD: /root
2019-02-04 05:55:40.186 [ ALERT] CRASH: Fault address (nil) (Address not mapped)
2019-02-04 05:55:40.186 [ ALERT] 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 /lib/x86_64-linux-gnu/libpcre.so.3 /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/libselinux.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
2019-02-04 05:55:40.186 [ ALERT] CRASH: Register dump [23]: 00000000000000000000000000000000000000000000000700007f6c02318e7000007f6bd800ac640000000000000000000000000000000100007f6c02318f9c000000000000000000007f6bd800ac64000000000000000000007f6bd801372000000000000000000000000000000000000000000000000000007f6c02318f2800007f6c04add6760000000000010293002b0000000000330000000000000004000000000000000efffffffe7ffbba130000000000000000
2019-02-04 05:55:40.186 [ ALERT] CRASH: STACKTRACE
2019-02-04 05:55:40.533 [ ALERT] CRASH: /project/repo/checkout/src/trap.c:176 0x557c9566111a 0x557c9544c000
2019-02-04 05:55:40.800 [ INFO] avahi: Service 'Tvheadend' successfully established.
2019-02-04 05:55:40.903 [ ALERT] CRASH: ??:0 0x7f6c058c50c0 0x7f6c058b4000
2019-02-04 05:55:40.903 [ ALERT] CRASH: strlen+0x26 (/lib/x86_64-linux-gnu/libc.so.6)
2019-02-04 05:55:41.252 [ ALERT] CRASH: /project/repo/checkout/src/htsmsg.c:373 0x557c95658ae5 0x557c9544c000
2019-02-04 05:55:41.600 [ ALERT] CRASH: /project/repo/checkout/src/misc/m3u.c:164 0x557c9565f104 0x557c9544c000
2019-02-04 05:55:41.951 [ ALERT] CRASH: /project/repo/checkout/src/input/mpegts/iptv/iptv_auto.c:356 0x557c95733883 0x557c9544c000
2019-02-04 05:55:42.299 [ ALERT] CRASH: /project/repo/checkout/src/download.c:123 0x557c95677ca8 0x557c9544c000
2019-02-04 05:55:42.647 [ ALERT] CRASH: /project/repo/checkout/src/httpc.c:717 0x557c95674dcb 0x557c9544c000
2019-02-04 05:55:42.994 [ ALERT] CRASH: /project/repo/checkout/src/httpc.c:1137 0x557c95675572 0x557c9544c000
2019-02-04 05:55:43.343 [ ALERT] CRASH: /project/repo/checkout/src/httpc.c:1195 0x557c95675e98 0x557c9544c000
2019-02-04 05:55:43.691 [ ALERT] CRASH: /project/repo/checkout/src/httpc.c:1453 0x557c9567603d 0x557c9544c000
2019-02-04 05:55:44.039 [ ALERT] CRASH: /project/repo/checkout/src/tvh_thread.c:91 0x557c956232b1 0x557c9544c000
2019-02-04 05:55:44.409 [ ALERT] CRASH: ??:0 0x7f6c058bb494 0x7f6c058b4000
2019-02-04 05:55:44.409 [ ALERT] CRASH: clone+0x3f (/lib/x86_64-linux-gnu/libc.so.6)

Running on Debian Stretch. The current config was OK until mid of Dec last year, then I had some updates and unable to use it since then. Now, I had time to check what's going on but it seems it is out of my capabilities...
Please let me know what else you need from me to get it resolved.
Thank you,
Karoly