The move of the EDDN server that caused the EDDB updates to fail also means that you need to have up-to-date versions of the various tools that feed data into EDDN for use by EDDB, EDSM, Inara, and various other sites:
ED Discovery - 8.1.4 or newer (8.1.6 is current)
EDMC - 2.3.6 (current version)
EDDI - 2.3.0 (current version)
If you use older versions, your uploaded data will be lost, and you will probably get error messages.