Service exiting, segmentation fault on cleanup and remove-unknown

noticed urbackup is exiting a minute or so after starting, assumed the issue was space so I attempted to run cleanup -doing so reliably results in segmetation fault a la:

Deleting client with id "48" name "Farragut - DSS Fileserver"
2022-03-23 11:06:34: Removing file backup with id "42743"
2022-03-23 11:06:35: SQLite: recovered 74812 frames from WAL file /var/urbackup/backup_server_links.db-wal code: 283
2022-03-23 11:06:35: ERROR: No permission to access "/mnt/LV_urb_storage/Farragut - DSS Fileserver/220225-1330"
2022-03-23 11:06:35: WARNING: Warning: Directory doesn't exist: "/mnt/LV_urb_storage/Farragut - DSS Fileserver/220225-1330"

then a few hundred (id, filesize, and hash changing)

WARNING: File entry with id 403808318 with filesize=133146 hash=piQiWqbsL6Z8kAyvYpxmzA== not found in entry index while deleting, but should be there. The file entry index may be damaged.

running remove-unknown results in essentially the same messages

Freeing database connections...
2022-03-23 11:11:02: Deleting client with id "48" name "Farragut - DSS Fileserver"
2022-03-23 11:11:02: Removing file backup with id "42743"
2022-03-23 11:11:02: ERROR: No permission to access "/mnt/LV_urb_storage/Farragut - DSS Fileserver/220225-1330"
2022-03-23 11:11:02: WARNING: Warning: Directory doesn't exist: "/mnt/LV_urb_storage/Farragut - DSS Fileserver/220225-1330"
2022-03-23 11:11:13: WARNING: File entry with id 403808318 with filesize=133146 hash=piQiWqbsL6Z8kAyvYpxmzA== not found in entry index while deleting, but should be there. The file entry index may be damaged. 

Segmentation fault

urbackup will run for a few minutes and during that interval I can see it has scheduled client Farragut - DSS Fileserver for removal -which I directed it to do “Farragut - DSS Fileserver This client is going to be removed. Stop removing client. Clients are removed during the cleanup in the cleanup time window.”

I’m hoping I’m missing a ‘simple/obvious’ solution and that i don’t need to edit sqlite entries as I’ve never done that before. If necessary I will -hoping someone could give me some n00b friendly guidance if this is the case.

I did see Solved - Server Segmentation Fault - Deleting a Directory that does not exist which seems to be the same issue or related.

gdb, if that’s helpful urbackup segmentation fault - Pastebin.com (hit character limit)