I have version 17.01.5 of openwrt installed on my tp link mr3420 v2, I use a pendrive for the low memory of this device. I get this space error, what would be the error?
I think you are using RAM as storage and you might lose the configuration if you reboot your device.
How could I fix it?
Now that I see the specifications of this model, it seems strange to me that you have that amount of RAM.
Ideally, forget about 4/32 devices and get one with more storage and RAM.