Tvheadend

I'm getting crashes of the backend from time-to-time. Have started logging and was able to capture one earlier today. Here the output:

2019-03-25 23:49:36.173 [  ERROR]:http: 192.168.1.21: HTTP/1.1 HEAD /imagecache/8673 -- 404
2019-03-25 23:49:42.794 [  ERROR]:http: 192.168.1.21: HTTP/1.1 HEAD /imagecache/8808 -- 404
2019-03-25 23:50:47.029 [   INFO]:mpegts: 11307V in AstraUK - tuning on SAT>IP DVB-S Tuner #1 (192.168.1.71)
2019-03-25 23:50:47.029 [   INFO]:subscription: 0CE6: "192.168.1.21 [ hts | Kodi Media Center ]" subscribing on channel "True Crime+1", weight: 150, adapter: "SAT>IP DVB-S Tuner #1 (192.168.1.71)", network: "AstraUK", mux: "11307V", provider: "BSkyB", service: "True Crime+1", profile="htsp", hostname="192.168.1.21", username="hts", client="Kodi Media Center" 
2019-03-25 23:50:48.382 [  ERROR]:http: 192.168.1.21: HTTP/1.1 HEAD /imagecache/8844 -- 404
2019-03-25 23:50:56.552 [   INFO]:subscription: 0CE6: "192.168.1.21 [ hts | Kodi Media Center ]" unsubscribing from "True Crime+1", hostname="192.168.1.21", username="hts", client="Kodi Media Center" 
2019-03-25 23:55:27.036 [   INFO]:mpegts: 11344.5V in AstraUK - tuning on SAT>IP DVB-S Tuner #1 (192.168.1.71)
2019-03-25 23:55:27.036 [   INFO]:subscription: 0CE7: "192.168.1.21 [ hts | Kodi Media Center ]" subscribing on channel "CBS Justice", weight: 150, adapter: "SAT>IP DVB-S Tuner #1 (192.168.1.71)", network: "AstraUK", mux: "11344.5V", provider: "BSkyB", service: "CBS Justice", profile="htsp", hostname="192.168.1.21", username="hts", client="Kodi Media Center" 
2019-03-25 23:55:28.003 [  ERROR]:http: 192.168.1.21: HTTP/1.1 HEAD /imagecache/8729 -- 404
2019-03-25 23:57:07.039 [WARNING]:epggrab: EIT: DVB Grabber - data completion timeout for 11344.5V in AstraUK
2019-03-26 00:03:29.912 [   INFO]:subscription: 0CE7: "192.168.1.21 [ hts | Kodi Media Center ]" unsubscribing from "CBS Justice", hostname="192.168.1.21", username="hts", client="Kodi Media Center" 
2019-03-26 00:03:41.976 [   INFO]:htsp: 192.168.1.21 [ hts | Kodi Media Center ]: Disconnected
2019-03-26 00:04:00.002 [   INFO]:xmltv: /usr/local/bin/tv_grab_wg++: grab /usr/local/bin/tv_grab_wg++
2019-03-26 00:04:00.037 [   INFO]:spawn: Executing "/usr/local/bin/tv_grab_wg++" 
2019-03-26 00:04:01.613 [   INFO]:xmltv: /usr/local/bin/tv_grab_wg++: grab took 2 seconds
2019-03-26 00:04:08.913 [  ALERT]:CRASH: Signal: 11 in PRG: /volume1/@appstore/tvheadend/bin/tvheadend (4.2.8) [3a70099d9d9bb5617cc943c4b7b09435107237a9] CWD: /

2019-03-26 00:04:08.913 [  ALERT]:CRASH: Fault address 0x192a (Address not mapped)
2019-03-26 00:04:08.941 [  ALERT]:CRASH: Loaded libraries: linux-gate.so.1 /var/packages/tvheadend/target/lib/libhdhomerun.so /var/packages/tvheadend/target/lib/
libdvbcsa.so.1 /var/packages/tvheadend/target/lib/libdvben50221.so /var/packages/tvheadend/target/lib/libdvbapi.so /var/packages/tvheadend/target/lib/libucsi.so
/var/packages/tvheadend/target/lib/libssl.so.1.0.0 /var/packages/tvheadend/target/lib/libcrypto.so.1.0.0 /var/packages/tvheadend/target/lib/libz.so /var/packages/tvheadend/target/lib/liburiparser.so.1 /var/packages/ffmpeg/target/lib/libavfilter.so.7 /var/packages/ffmpeg/target/lib/libswresample.so.3 /var/packages/ffmpeg/ target/lib/libavresample.so.4 /var/packages/ffmpeg/target/lib/libswscale.so.5 /var/packages/ffmpeg/target/lib/libavformat.so.58 /var/packages/ffmpeg/target/lib/libavcodec.so.58 /var/packages/ffmpeg/target/lib/libavutil.so.56 /lib/libdl.so.2 /lib/libpthread.so.0 /lib/libm.so.6 /lib/librt.so.1 /lib/libc.so.6 /var/packages/ffmpeg/target/lib/libpostproc.so.55 /var/packages/ffmpeg/target/lib/libfribidi.so.0 /var/pa
2019-03-26 00:04:08.957 [  ALERT]:CRASH: Register dump [19]: afafe8a100000033afafe8a1c13b0000afafe8a1ffff007bafafe8a10000007bafafe8a1b7e19e38afafe8a1a7a9f0b8afafe8a100000327afafe8a1afafed10afafe8a1b77947f4afafe8a1b7e19e38afafe8a100000000afafe8a100001926afafe8a10000000eafafe8a100000006afafe8a1b6e8ba9dafafe8a100000073afafe8a100210202afafe8a1afafed10afafe8a10000007b
2019-03-26 00:04:08.960 [  ALERT]:CRASH: STACKTRACE
2019-03-26 00:04:09.202 [  ALERT]:CRASH:  0xb6e932a5 0xb6dae000
2019-03-26 00:04:09.202 [  ALERT]:CRASH: __kernel_rt_sigreturn+0x0  (linux-gate.so.1)
2019-03-26 00:04:09.234 [  ALERT]:CRASH:  0xb6e8ba9d 0xb6dae000
2019-03-26 00:04:09.265 [  ALERT]:CRASH:  0xb6e8bb2a 0xb6dae000
2019-03-26 00:04:09.297 [  ALERT]:CRASH:  0xb6e8baae 0xb6dae000
2019-03-26 00:04:09.329 [  ALERT]:CRASH:  0xb6e8bb2a 0xb6dae000
2019-03-26 00:04:09.360 [  ALERT]:CRASH:  0xb6e8baae 0xb6dae000
2019-03-26 00:04:09.392 [  ALERT]:CRASH:  0xb6e8bb2a 0xb6dae000
2019-03-26 00:04:09.423 [  ALERT]:CRASH:  0xb6e8baae 0xb6dae000
2019-03-26 00:04:09.455 [  ALERT]:CRASH:  0xb6e8bb2a 0xb6dae000
2019-03-26 00:04:09.486 [  ALERT]:CRASH:  0xb6e8baae 0xb6dae000
2019-03-26 00:04:09.518 [  ALERT]:CRASH:  0xb6e8bb2a 0xb6dae000
2019-03-26 00:04:09.550 [  ALERT]:CRASH:  0xb6e8baae 0xb6dae000
2019-03-26 00:04:09.582 [  ALERT]:CRASH:  0xb6e8bb2a 0xb6dae000
2019-03-26 00:04:09.615 [  ALERT]:CRASH:  0xb6e8baae 0xb6dae000
2019-03-26 00:04:09.647 [  ALERT]:CRASH:  0xb6e8bf0a 0xb6dae000
2019-03-26 00:04:09.680 [  ALERT]:CRASH:  0xb6ec7cb6 0xb6dae000
2019-03-26 00:04:09.711 [  ALERT]:CRASH:  0xb6e70fa7 0xb6dae000
2019-03-26 00:04:09.743 [  ALERT]:CRASH:  0xb6e56d3c 0xb6dae000
2019-03-26 00:04:09.775 [  ALERT]:CRASH:  0xb4e073fb 0xb4e01000
2019-03-26 00:04:09.775 [  ALERT]:CRASH: clone+0x5e  (/lib/libc.so.6)