Can't continue download after router reboot

[scannerfm77]

I use Aria2 at luci x-wrt. When my router reboot, the current download gone. Not continue download. Is it possible to automatically continue download after reboot?
Thanks.

[no1xsyzy]

check input-file and save-session options. You must explicitly tell aria 2 instance to save download tasks as session.

[scannerfm77]

Thanks. I will try it.

Update:
I tried it and doesn't work. Still can't continue download automatically.