Can't transfer book to device - Mac Adobe Digital Edition for kobo

Everytime I try to transfer a book in my library (downloaded from the public library) to my ereader it has an error and unexpectedly shuts down. Help?

Process:         Adobe Digital Editions [365]

Path:            /Applications/Adobe Digital Editions 4.0.app/Contents/MacOS/Adobe Digital Editions

Identifier:      com.adobe.adobedigitaleditions.app

Version:         4.0.2 (1)

Code Type:       X86-64 (Native)

Parent Process:  launchd [125]

Date/Time:       2014-11-15 18:54:19.212 -0500

OS Version:      Mac OS X 10.7.5 (11G63b)

Report Version:  9

Interval Since Last Report:          48721 sec

Crashes Since Last Report:           12

Per-App Interval Since Last Report:  8238 sec

Per-App Crashes Since Last Report:   11

Anonymous UUID:                      1852EA96-E1BF-4C2F-A79E-034FD3D2E3A7

Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)

Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000

VM Regions Near 0:

-->

    __TEXT                 0000000102bda000-00000001033df000 [ 8212K] r-x/rwx SM=COW  /Applications/Adobe Digital Editions 4.0.app/Contents/MacOS/Adobe Digital Editions

Application Specific Information:

objc[365]: garbage collection is OFF

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread

0   com.adobe.adobedigitaleditions.app 0x0000000102e32ae1 DRMDecryptor::MakeFilterContext(std::__1::shared_ptr<ePub3::ManifestItem const>) const + 355

1   ePub3.dylib                   0x0000000103df0815 ePub3::FilterChainSyncStream::FilterChainSyncStream(std::__1::unique_ptr<ePub3::ByteStream, std::__1::default_delete<ePub3::ByteStream> >&&, std::__1::vector<std::__1::shared_ptr<ePub3::ContentFilter>, std::__1::allocator<std::__1::shared_ptr<ePub3::ContentFilter> > >&, std::__1::shared_ptr<ePub3::ManifestItem const>) + 339

2   ePub3.dylib                   0x0000000103df2bc8 _ZNSt3__110shared_ptrIN5ePub321FilterChainSyncStreamEE11make_sharedIJNS_10unique_ptrINS1_10ByteStreamENS_14default_deleteIS6_EEEERNS_6vectorINS0_INS1_13ContentFilterEEENS_9allocatorISC_EEEERNS0_IKNS1_12ManifestItemEEEEEES3_DpOT_ + 134

3   ePub3.dylib                   0x0000000103df1901 ePub3::FilterChain::GetSyncFilteredOutputStreamForManifestItem(std::__1::shared_ptr<ePub3::ManifestItem const>) const + 433

4   ePub3.dylib                   0x0000000103da8995 ePub3::Package::SyncContentStreamForItem(std::__1::shared_ptr<ePub3::ManifestItem const>) const + 265

5   ePub3.dylib                   0x0000000103db9ec6 ePub3::ManifestItem::ReferencedDocument() const + 182

6   ePub3.dylib                   0x0000000103d9bbfa ePub3::PackageBase::NavTablesFromManifestItem(std::__1::shared_ptr<ePub3::PackageBase>, std::__1::shared_ptr<ePub3::ManifestItem>) + 122

etc...