There is a kernel oops in the logs. From where do you open the media file?
Can you try it to copy it to local storage at the device? Can you provide a sample of the media file and are you able to reproduce it with this as well?
Do you have latest Android firmware on the VIM3?
Feb 10 21:41:42 CoreELEC kernel: DMA: 1066*4kB (UEH) 563*8kB (UMEH) 287*16kB (UMEH) 88*32kB (UEH) 3*64kB (H) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 16368kB
Feb 10 21:41:42 CoreELEC kernel: 6474 total pagecache pages
Feb 10 21:41:42 CoreELEC kernel: 0 pages in swap cache
Feb 10 21:41:42 CoreELEC kernel: Swap cache stats: add 0, delete 0, find 0/0
Feb 10 21:41:42 CoreELEC kernel: Free swap = 0kB
Feb 10 21:41:42 CoreELEC kernel: Total swap = 0kB
Feb 10 21:41:42 CoreELEC kernel: 884736 pages RAM
Feb 10 21:41:42 CoreELEC kernel: 0 pages HighMem/MovableOnly
Feb 10 21:41:42 CoreELEC kernel: 22191 pages reserved
Feb 10 21:41:42 CoreELEC kernel: 126976 pages cma reserved
Feb 10 21:41:42 CoreELEC kernel: [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name
Feb 10 21:41:42 CoreELEC kernel: [ 2121] 0 2121 698 30 5 2 0 0 sh
Feb 10 21:41:42 CoreELEC kernel: [ 2320] 0 2320 5778 309 22 2 0 0 systemd-journal
Feb 10 21:41:42 CoreELEC kernel: [ 3338] 0 3338 720 42 5 2 0 0 rpcbind
Feb 10 21:41:42 CoreELEC kernel: [ 3499] 0 3499 2997 170 7 2 0 -1000 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: [ 3637] 0 3637 1166 55 6 2 0 0 connman-vpnd
Feb 10 21:41:42 CoreELEC kernel: [ 3638] 81 3638 871 63 6 2 0 -900 dbus-daemon
Feb 10 21:41:42 CoreELEC kernel: [ 3652] 0 3652 1391 54 7 2 0 0 systemd-logind
Feb 10 21:41:42 CoreELEC kernel: [ 3728] 0 3728 557 16 5 2 0 0 eventlircd
Feb 10 21:41:42 CoreELEC kernel: [ 3738] 0 3738 22880 216 12 2 0 0 pulseaudio
Feb 10 21:41:42 CoreELEC kernel: [ 3760] 0 3760 698 20 5 2 0 0 crond
Feb 10 21:41:42 CoreELEC kernel: [ 3902] 0 3902 1256 83 7 2 0 0 connmand
Feb 10 21:41:42 CoreELEC kernel: [ 4002] 495 4002 907 85 6 2 0 0 avahi-daemon
Feb 10 21:41:42 CoreELEC kernel: [ 4039] 0 4039 1312 98 6 2 0 -1000 sshd
Feb 10 21:41:42 CoreELEC kernel: [ 4043] 0 4043 1570 64 6 2 0 0 wpa_supplicant
Feb 10 21:41:42 CoreELEC kernel: [ 4079] 0 4079 4457 289 12 2 0 0 nmbd
Feb 10 21:41:42 CoreELEC kernel: [ 4119] 0 4119 7593 666 18 2 0 0 smbd
Feb 10 21:41:42 CoreELEC kernel: [ 4152] 0 4152 6887 341 15 2 0 0 smbd-notifyd
Feb 10 21:41:42 CoreELEC kernel: [ 4155] 0 4155 6885 341 15 2 0 0 cleanupd
Feb 10 21:41:42 CoreELEC kernel: [ 4204] 0 4204 7593 385 16 2 0 0 lpqd
Feb 10 21:41:42 CoreELEC kernel: [ 4292] 0 4292 672 29 4 2 0 0 kodi.sh
Feb 10 21:41:42 CoreELEC kernel: [ 4315] 0 4315 882170 774349 1559 4 0 0 kodi.bin
Feb 10 21:41:42 CoreELEC kernel: [ 4316] 0 4316 454 10 4 2 0 0 hciattach
Feb 10 21:41:42 CoreELEC kernel: [ 4317] 0 4317 1296 50 6 2 0 0 bluetoothd
Feb 10 21:41:42 CoreELEC kernel: [ 6580] 0 6580 2997 205 9 2 0 0 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: [ 6625] 0 6625 2997 156 7 2 0 0 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: [ 6626] 0 6626 2997 156 7 2 0 0 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: [ 6627] 0 6627 2997 156 7 2 0 0 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: [ 6628] 0 6628 2997 156 7 2 0 0 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: [ 6630] 0 6630 2997 156 7 2 0 0 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: [ 6757] 0 6757 2997 156 7 2 0 0 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: [ 6770] 0 6770 2997 156 7 2 0 0 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: [ 6771] 0 6771 2997 156 7 2 0 0 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: [ 6785] 0 6785 2997 156 7 2 0 0 systemd-udevd
Feb 10 21:41:42 CoreELEC kernel: Out of memory: Kill process 4315 (kodi.bin) score 872 or sacrifice child
Feb 10 21:41:42 CoreELEC kernel: Killed process 4315 (kodi.bin) total-vm:3528680kB, anon-rss:2950732kB, file-rss:146664kB, shmem-rss:0kB
Feb 10 21:41:42 CoreELEC kernel: oom_reaper: reaped process 4315 (kodi.bin), now anon-rss:16kB, file-rss:150964kB, shmem-rss:0kB
It looks like Kodi or your used addon does have a memory leak.