Translation (yes my Wii U is kinda weird with the languages pero a la larga te acostumbras to understand both idiomas):
Error code: 150-3033
An error has occurred.
It is possible that the USB storage device is not receiving enough power.
Turn off the Wii U console and plug in.
I already tried:
Plugging and unplugging the USB device, turning off and on my Wii U, deleting my save data, deleting sdcafiine and the mods, also, when I play by example, Minecraft or another games it works good (the USB)
BUT here is an interesting thing: it only happens when I'm in pretendo network; when I'm not using inkay patch (aroma) it works perfectly. Does someone know what should I do in this case? Thank you :)