Systemd-coredump[188460]: Process 187294 (mount.exfat) of user 0 dumped core

this happen repeatedly when i am trying to work with a file on SD card connected via card reader:
$ rsync -avvh "/run/media/me/Ventoy/XBian_Latest_rpi4.img.gz" "/myhdd/XBian_Latest_rpi4.img.gz" -c

rsync: [sender] send_files failed to open "/run/media/me/Ventoy/XBian_Latest_rpi4.img.gz": Transport endpoint is not connected (107)

sent 104 bytes  received 35 bytes  3.71 bytes/sec
total size is 604.49M  speedup is 4,348,863.03
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1330) [sender=v3.2.3]

$ journalctl
hn systemd[1]: systemd-coredump@27-188457-0.service: Deactivated successfully.
hn systemd-coredump[188460]: Process 187294 (mount.exfat) of user 0 dumped core.
                                             Found module with build-id: 21dd0b95b6d40459fda840e512d3ee4b5e26d389
                                             Found module with build-id: 040cc3dd10461562f177df39e3be2f3704258c3c
                                             Found module with build-id: 5abc547e7b0949f89f3c0e21ab0c8331a7440a8a
                                             Found module with build-id: 4b406737057708c0e4c642345a703c47a61c73dc
                                             Found module with build-id: 07c8f95b4f3251d08550217ad8a1f31066229996
                                             Found module with build-id: cc5fde90754346b4d5f7c516f7651b4596c911de
                                             Found module mount.exfat-fuse with build-id: 00bc9df78bd69505279f1db87fb008d2c7b96e57
                                             Stack trace of thread 187294:
                                             #0  0x00007fa56603cd22 raise ( + 0x3cd22)
                                             #1  0x00007fa566026862 abort ( + 0x26862)
                                             #2  0x000055ef988b8026 n/a (mount.exfat-fuse + 0x2026)

also seen rsync: [sender] read errors mapping "/run/media/me/Ventoy/XBian_Latest_rpi4.img.gz": Input/output error (5)

I suspect that SD card in USB card reader stops working.

dmesg no lines around that time. Where to report this?