There are must be something wrong when your node receives GET_AUDIT or GET_REPAIR, otherwise the suspension score would not be affected to the level where node become suspended.
Maybe you use a docker version without log redirection, then all logs got deleted with the container and failure records are now gone.
If you have logs redirected, then search for GET_AUDIT or GET_REPAIR and ERROR level, i.e.
cat /mnt/storj/storagenode1/storagenode.log | grep -E "GET_AUDIT|GET_REPAIR" | grep ERROR | tail