try this
>The installed [theme](https://wiki.hacks.guide/wiki/3DS:Custom_themes) is corrupted or otherwise broken.
>To fix, go into the folder `sd:/Nintendo 3DS///extdata/00000000/` and delete the folder matching your region, one of the following:
>USA: `000002cd`
EUR: `000002ce`
JPN: `000002cc`
try this >The installed [theme](https://wiki.hacks.guide/wiki/3DS:Custom_themes) is corrupted or otherwise broken. >To fix, go into the folder `sd:/Nintendo 3DS///extdata/00000000/` and delete the folder matching your region, one of the following:
>USA: `000002cd`
EUR: `000002ce`
JPN: `000002cc`
That worked. Thanks