Use the official snapshot of the Fdr blockchain :
https://fdreserve.com/downloads/snapshot.zip
When you download the file. you have to move the folder of the coin and unzip to:
C:\Users\WINDOWSUSERNAME\AppData\Roaming\fdreserve
start the Qt again
When you download the file. you have to move the folder of the coin:
/home/$user/.fdreserve
Or
/root/.fdreserve
start the daemon again