That is the first time I am hearing about an error like that.
The only thing that I could think of is your computer's antivirus is removing the file.
Make the file an excused file or something else could be going on.
That's my first guess.
you could also copy the folder and put a new rgss301 in that and see if it disappears
Viewing post in Axe Maiden Vana v1.00 (Public Build) comments
I have the same issue. If I add the files from part 2 into part 1 I get an error that it failed to load the archive. If I do the inverse, I get the same error. If it can be downloaded as an unbroken download there isn't an issue, such as if I download from DLsite, which I can't read any of the text then. But combining 2 archives together makes it so the game fails to launch.
Hmm, Okay I uploaded a version that has not been separated into parts here: https://easyupload.io/ykmdq9
Please let me know if this version plays for you.