unpack_from requires a buffer of at least

[Edwina920]

Conversion log：

Error: unpack_from requires a buffer of at least 199606 bytes for unpacking 199528 bytes at offset 78 (actual buffer size is 13749)
Traceback (most recent call last):
File "E:\KindleUnpack-083\KindleUnpack.pyw", line 370, in unpackEbook
kindleunpack.unpackBook(infile, outdir, apnxfile, epubversion, use_hd, dodump=dump, dowriteraw=writeraw, dosplitcombos=splitcombos)
File "E:\KindleUnpack-083\lib\kindleunpack.py", line 880, in unpackBook
sect = Sectionizer(infile)
^^^^^^^^^^^^^^^^^^^
File "E:\KindleUnpack-083\lib\mobi_sectioner.py", line 56, in init
sectionsdata = struct.unpack_from(bstr('>%dL' % (self.num_sections*2)), self.data, 78) + (self.filelength, 0)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
struct.error: unpack_from requires a buffer of at least 199606 bytes for unpacking 199528 bytes at offset 78 (actual buffer size is 13749)