The HA-Bridge backup restore does need some work, but it is better then it was.
I suggested backing up and restoring from a PC, however only the restore from PC part was added.
https://github.com/bwssytems/ha-bridge/issues/1033 I'd suggest using a program like Filezilla to grab the back up files or copies of them from the PI and place them in a folder on your PC,
or do it how BWSystems describes in the above link.
The last time I had to do a HA-Bridge restore was in 2018 prior the the new method and it was a chore.
There is currently a RC build of HA-Bridge being tested which may help with response issues but I've not tested it.
I don't believe the Alexa issue is as much a HA-Bridge issue as an Amazon one. My Alexa control works flawless unless I have a power outage then the first attempt to turn something on or off I get the message that the device wasn't responding but did.
If I say yes it did Alexa responds OK and I never have a issue again till next power outage. (or maybe it is Internet outage)