The Windows explorer can be used to create folders within the Strive program folder instead of waiting for the mod system to create them. There are folders within ".../Strive/mods/AricsExpansion/patch/" that do not correspond to folders within the Strive program folder. For instance, in "res://files/aric_expansion_images/abils/panic.png.import" from the the errors you just gave "res://" refers to your Strive program folder, which contains the "files" folder. However there will not be the folders "aric_expansion_images/abils" within that folder, so the panic png.import file cannot be copied to there.
Edit: Many of your errors are a missing folder in the backup folder "res://backup/.import".