[hampage]

after trying directly the plugin file topazextract.py I got a few more details about the error

Processing Book: The Wizard of Oz and Other Narcissists: Coping with the One-Wa
y Relationship in Work, Love, and Family

Trying: J2DD6NV4

Trying: 4zzZb+4M
Book Key Found!

Processing Section: img
. . . . . .
Processing Section: color
. . . . . .
Processing Section: other
.
Processing Section: dict
.
Processing Section: glyphs
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Processing Section: page
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Processing Section: metadata
.
Successfully Extracted Topaz contents
Updating to color images if available
Creating cover.jpg
Processing Dictionary
Processing Meta Data and creating OPF
Traceback (most recent call last):
File "D:\Programas\Kindle\tools_v3.7\tools\Calibre_Plug ins\K4MobiDeDRM_v02.7_p
lugin\topazextract.py", line 439, in <module>
sys.exit(main())
File "D:\Programas\Kindle\tools_v3.7\tools\Calibre_Plug ins\K4MobiDeDRM_v02.7_p
lugin\topazextract.py", line 395, in main
tb.processBook(pidlst)
File "D:\Programas\Kindle\tools_v3.7\tools\Calibre_Plug ins\K4MobiDeDRM_v02.7_p
lugin\topazextract.py", line 269, in processBook
rv = genbook.generateBook(self.outdir, raw, fixedimage)
File "D:\Programas\Kindle\tools_v3.7\tools\Calibre_Plug ins\K4MobiDeDRM_v02.7_p
lugin\genbook.py", line 331, in generateBook
authors = meta_array['Authors']
KeyError: 'Authors'