1. HA not ready, device shared storage alerts mean that this chassis is impacted by i2c. -- You'd need to get in touch with tac for them to give the chassis logs a look and have the i2c workaround performed.
A few of those alerts should clear themselves once the i2c is taken care of.
2. Config-backup-outdated is a generic message -- See if you are able to ping the backup server from the FI (or) There could be a backup job performed some time back, for which the admin reminder was enabled for an interval of X days. So, as I said this a generic message and could have multiple solutions. You may want to reach out to TAC.
3. Default-host-package-missing
Confirm that you are not using default host fw package anywhere.
Make changes to the fw package > simple > blade package > check the version you are running on.
-Majid