i have installed openwrt on my router for about a month
at first i ad about 50% storage filled with apps (adguardhome, dns, etc)
but suddenly, yesterday my storage reach 99% and some of apps does not work (including adguardhome and dns...)
what cause this problem to occur? whhat cause my storage suddenly full?
What programs have you installed?
What are the programs doing?
Have you asked for some logging from them?
By default the normal OpenWrt writes nothing to flash during operations, so it requires extra apps to cause disk writes...
Just look at the disk usage stats with e.g. "du" or look into directory contents.
Assuming that you have a "normal" router with fixed ROM and r/w overlay, all your changes are in /overlay dir and its subdirectories.