It could be My WII blocked for writing on SD card ?

I have a WII with homebrew channel, I have my games on a usb hard drive, the errors ( yes, multiple erros ) comes when trying to save on sd card, for example on snes9xfg, I can play my games if I select usb for roms, but, the config files is never updated ( or created ) on sd card. Wiiflow throws DSI error, USB LOADER GX can play WII Games but error on GAMECUBE ones with NINTENDONT approach, I can't use homebrew browser because I got an "not owner" error when trying to write on SD card, I tried both with microsd "SANDISK" branded (with adapter ) and with a SD Kingston. If I change manually the config files on the computer, goes fine ( the nes and snes emulator ), but stills having erros on usd loader gx ( that doesn't save setting as well ), In resumen, my Wii can read sd cards but not write on it.
I haven't find enought information about this.