Yeah, I've tried searching through Google for an answer to this problem, and I've yet to find one that clearly explains what to do to fix it.
Also, though I have experience with using PKHex on the 3DS, I'm a total beginner with using it through the Switch, so forgive me if I sound like a newbie (Cuz' I am)...
I've been trying to transfer some of my altered Pokémon through HOME to move them from Scarlet and into Brilliant Diamond.
For a bit of context, I was trying to make a separate copy of all my Pokémon available for BDSP so I can play a modded version of the game and use the copies if I wanted to, and then place the originals back in Scarlet and their other respective games. I wasn't sure if it would work, but I just wanted to try and see.
But while trying to transfer using HOME, I would keep getting a '2 alzta-0005' error code. Pretty sure it meant that it was detecting that my Pokemon were altered, so I thought I'd finally try installing and using the Auto Legality mod I've heard about, and well, I get the two messages shown here.
The first image is when I'm using the latest version of PKHex and just trying to open up the main file for a copy of Scarlet, and the second image is from using an older version of PKHex while following this guide.
One guy I told about my issue on a different forum site says I've been banned, but I'm not sure if that's entirely true or not (Nor am I sure of how to unban myself if that really is the case).
Has anyone ever really found a way to fix this issue? Are my files corrupted, or is the problem something else entirely different?