Thanks for the reply!
Unfortunately, I cannot leave a comment due to issues with the site.
Archive zipped 2 times:
1st time with password x9555320q
2 nd time with password from DropMeFiles
(in my case it 123),
To unpack it, you first need to use the password "123".
Then, extract the resulting archive using the password "x9555320q".
(It turned out a bit complicated, since DropMeFiles re-archives the file..)
If that doesn't help, I'll repack it without a password.