No, you just need to save in game and export the full save file correctly. Compressed save files or save states are not raw save files that save editors can recognize.
Please indicate the steps to replicate, it is not clear from the stacktrace what inputs you used to trigger the message.
edit: fixed on latest dev build! thanks for reporting
Save editors cannot change the way the ROM behaves when it comes to checking if hardware is currently inserted.
Get a NDS or emulate an NDS, or use a cheat code that changes the ROM's code while the game is running.
This is a new legality check. PKHeX was incorrectly setting the HasContestMemoryRibbon and HasBattleMemoryRibbon flags for pk6/pk7 formats. Only starting in Gen8 format does the game set the flag when the count is nonzero. It's a bug with the Bank app that was never fixed.
Use the batch editor to set those two properties to false.
If I recall correctly:
TryCount_Item is the bonus roll count for having shiny charm.
TryCount_Research100 is the bonus roll count for having level 10 research for that species.
TryCount_ResearchPerfect is the bonus roll count for having a perfect dex entry for that species.
Do the math yourself as to what overall rate you want, and edit appropriately. Make sure you have the in-game bonuses active.
"Masuda method" is just breeding 2 things with different language IDs.
Since your photo has two different languages, yes, it'll gain the extra shiny rolls.
https://bulbapedia.bulbagarden.net/wiki/Masuda_method
Not sure which .NET Framework you have set up; be sure you're on at least .NET 4.6.1 (4.8 would work too).
PKHeX is gradually shifting away from the .NET Framework and will eventually jump to .NET 6+ (before or after November), which will no longer work with Wine.
Battle Version: When can you set the battle version in game? Are there any restrictions on doing so?
Moves: How would it learn the move? If it's something that is kept track of, does it have that keep-track value set?