Tvheadend

Hi,
I have been running TVH 4.2 for years, but I just reinstalled my computer from scratch and told myself that it would be nice to try TVH 4.3, since there is a feature I would like (better image cache management to avoid thousands of temporary files and slow startup).
So I took the latest LibreElec (9.2.3) and the latest TVH nightly (4.3-1885-08.06.2020) and installed it.
It worked a few hours, but now it does not anymore, due to the crash below.
I have read on the forum that I might be due to a mismatch between the config file version and the TVH version.
It happened just after I set up my EPG by using the Kodi addon and pointing it to my XMLTV file location. May this be due to the fact that the Kodi TVH client addon is officially for TVH 4.2 and not 4.3?

Many thanks

2020-06-16 07:56:08.732 [   INFO] main: Log started
2020-06-16 07:56:08.732 [   INFO] http: Starting HTTP server 0.0.0.0:9981
2020-06-16 07:56:08.732 [   INFO] htsp: Starting HTSP server 0.0.0.0:9982
2020-06-16 07:56:08.759 [   INFO] config: loaded
2020-06-16 07:56:08.759 [   INFO] config: scanfile (re)initialization with path <none>
2020-06-16 07:56:08.827 [   INFO] scanfile: DVB-S - loaded 1 regions with 115 networks
2020-06-16 07:56:08.827 [   INFO] scanfile: DVB-T - loaded 44 regions with 1119 networks
2020-06-16 07:56:08.827 [   INFO] scanfile: DVB-C - loaded 19 regions with 62 networks
2020-06-16 07:56:08.827 [   INFO] scanfile: ATSC-T - loaded 2 regions with 12 networks
2020-06-16 07:56:08.827 [   INFO] scanfile: ATSC-C - loaded 1 regions with 5 networks
2020-06-16 07:56:08.827 [   INFO] scanfile: ISDB-T - loaded 2 regions with 1297 networks
2020-06-16 07:56:09.017 [   INFO] linuxdvb: adapter added /dev/dvb/adapter0
2020-06-16 07:56:09.028 [   INFO] dvr: Creating new configuration ''
2020-06-16 07:56:09.029 [  ERROR] caclient: wrong class caclient_dvbcam!
2020-06-16 07:56:09.029 [  ALERT] CRASH: Signal: 6 in PRG: /storage/.kodi/addons/service.tvheadend42/bin/tvheadend (4.2.8-36 ~ LibreELEC Tvh-addon v9.2.0.121) [fcf5388fdfbc9eebe0e59a4bc5e5e281df7bc8c7] CWD: /  
2020-06-16 07:56:09.029 [  ALERT] CRASH: Fault address 0x2407 (N/A)
2020-06-16 07:56:09.029 [  ALERT] CRASH: Loaded libraries: linux-vdso.so.1 /usr/lib/libhdhomerun.so /usr/lib/libssl.so.1.1 /usr/lib/libcrypto.so.1.1 /usr/lib/libz.so.1 /usr/lib/libavahi-common.so.3 /usr/lib/libavahi-client.so.3 /usr/lib/libm.so.6 /usr/lib/libva.so.2 /usr/lib/libbz2.so.1.0 /storage/.kodi/addons/service.tvheadend42/lib/libgnutls.so.30 /usr/lib/libva-drm.so.2 /usr/lib/libvdpau.so.1 /usr/lib/libX11.so.6 /usr/lib/libdl.so.2 /usr/lib/libpthread.so.0 /usr/lib/librt.so.1 /usr/lib/libc.so.6 /usr/lib/libdbus-1.so.3 /usr/lib/libsystemd.so.0 /lib64/ld-linux-x86-64.so.2 /usr/lib/libidn2.so.0 /storage/.kodi/addons/service.tvheadend42/lib/libnettle.so.6 /storage/.kodi/addons/service.tvheadend42/lib/libhogweed.so.4 /storage/.kodi/addons/service.tvheadend42/lib/libgmp.so.10 /usr/lib/libdrm.so.2 /usr/lib/libXext.so.6 /usr/lib/libnss_files.so.2  
2020-06-16 07:56:09.029 [  ALERT] CRASH: Register dump [23]: 000000000000000000007ffe11b6312000000000000000080000000000000246000055c902bad89e0000000000000000000055c902bae030000055c902bae058000000000000000200007ffe11b63120000055c90100a8e000000000000000060000000000000000000000000000000000007f935b15ec1a00007ffe11b6319800007f935b15ec1a0000000000000246002b00000000003300000000000000000000000000000000fffffffe7ffbfa170000000000000000
2020-06-16 07:56:09.029 [  ALERT] CRASH: STACKTRACE
2020-06-16 07:56:09.030 [  ALERT] CRASH:  0x55c8ff77ebea 0x55c8ff445000
2020-06-16 07:56:09.031 [  ALERT] CRASH:  0x7f935b2fa350 0x7f935b2e8000
2020-06-16 07:56:09.031 [  ALERT] CRASH: gsignal+0xca  (/usr/lib/libc.so.6)
2020-06-16 07:56:09.031 [  ALERT] CRASH: abort+0x110  (/usr/lib/libc.so.6)
2020-06-16 07:56:09.031 [  ALERT] CRASH:  0x55c8ff7e9083 0x55c8ff445000
2020-06-16 07:56:09.032 [  ALERT] CRASH:  0x55c8ff7e92db 0x55c8ff445000
2020-06-16 07:56:09.033 [  ALERT] CRASH:  0x55c8ff7e6003 0x55c8ff445000
2020-06-16 07:56:09.034 [  ALERT] CRASH:  0x55c8ff738759 0x55c8ff445000
2020-06-16 07:56:09.034 [  ALERT] CRASH: __libc_start_main+0xeb  (/usr/lib/libc.so.6)