Hacking smash bros saving data error

[ineedhelp123]

i decided to load up smash bros with mods, but im getting a message saying "Saving data... Dont turn the power off" its been stuck on 0/100 and i dont know what to do.

 

[kidasquid]

Try using ftpiiu everywhere and deleting the texture folder of the save

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[RareKirby]

My wii u broke on may 2016. Finally got a new wii u and loaded my old mods. I have this error. I'm scare to try my mods because crashing can break your wi u. This is my 3rd Wii U. Has there been any updates? Like do I have to reconfigure my mods?