invalid plug in message calibre 9.2.1

[teatringestazione]

Hello!

macbook pro M3 max macOS tahoe

When i try to upload the dedrm zip i receive the pop up message as follow:

calibre, version 9.2.1
ERRORE: Eccezione non gestita: InvalidPlugin:The plugin in '/Users/annagesualdi/Downloads/DeDRM_tools_10.0.9.zip' is invalid. It does not contain a top-level init.py file

calibre 9.2.1 embedded-python: True
macOS-26.3-arm64-arm-64bit-Mach-O Darwin ('64bit', 'Mach-O')
('Darwin', '25.3.0', 'Darwin Kernel Version 25.3.0: Wed Jan 28 20:47:03 PST 2026; root:xnu-12377.81.4~5/RELEASE_ARM64_T6031')
Python 3.14.2
OSX: ('26.3', ('', '', ''), 'arm64')
Interface language: it
EXE path: /private/var/folders/70/1gf03jjs15v85q18mnfy569h0000gn/T/AppTranslocation/F60A2907-39E7-46C0-A569-15A1DE5821A3/d/calibre.app/Contents/MacOS/calibre
Successfully initialized third party plugins: EpubMerge (3, 2, 0)
Traceback (most recent call last):
File "calibre/gui2/preferences/plugins.py", line 331, in add_plugin
File "calibre/customize/ui.py", line 574, in add_plugin
File "calibre/customize/ui.py", line 88, in load_plugin
File "calibre/customize/zipplugin.py", line 311, in load
File "calibre/customize/zipplugin.py", line 401, in _locate_code
calibre.customize.InvalidPlugin: The plugin in '/Users/annagesualdi/Downloads/DeDRM_tools_10.0.9.zip' is invalid. It does not contain a top-level init.py file

[ElleKayEm]

You're trying to load the whole archive. Extract DeDRM_plugin.zip out of DeDRM_tools_10.0.9.zip.

[teatringestazione]

thank you! now it works