If a CN database is damaged, then an export/import can be done (only for advanced users who can recognize such issue)

Stop CN service

Go to CN directory and perform normal export/import
Start CN service



Manual steps to recover if D4 and backup can not be created

hansa-cloudnode --rawdata
ren HANSA.HDB HANSA.HDB.D4
hansa-cloudnode rawdata.txt
hansa-cloudnode --backup
ren HANSA.HDB HANSA.HDB.BAK
hansa-cloudnode Backup\TB.TXT