if this is not gonna work i would do like this:
1. .\switch\.overlays
- for test remove all overlays from this directory (if youre using/having that)
. test again
-> not working ?
2. rename the current atmo folder on your sd to _bak (or whatever you like)
. copy clean atmosphere to it with addons you really need to just run the app
. test again
-> not working ?
3.
try github help/issue on the problematic app
-> not working ?
4. check your sd card speed (just make sure its fast enough, I had once with the snesmini strange behavior on too slow sdcard)
does not make really sense but its maybe a shot worth

. test again
-> not working ?
5.
if this is not working also i would really setup a new emunand and then start again.
As I wrote I have tested exactly these apps here linked/provided and it works.
your error most likely sounds like a corrupted/old/not supported account link.
I could also imagine that this is caused "maybe" by creating from an productive sysnand (never tested that cause I dont play at all, I just have fun testing stuff ^^)