0.8.46 - Download Metadata broken!

Hi,

Just installed latest Calibre Version (0.8.46 - Windows 7), organized some new Book and discovers "Download Metadata" don't functions no more.

So here the Error-Message:

calibre, version 0.8.46
ERROR: No matches found: <p>Failed to find any books that match your search. Try making the search <b>less specific</b>. For example, use only the author's last name and a single distinctive word from the title.<p>To see the full log, click Show Details.

Running identify query with parameters:
{u'authors': [u'Michael Marcus Thurner'], u'identifiers': {u'amazon': u'B007PI2IAA'}, u'timeout': 30, u'title': u'Der Maskensch\xf6pfer'}
Using plugins: Google, Amazon.com, ISBNDB
The log from individual plugins is below

****************************** Google ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.63 Safari/534.3')]
Found 0 results
Downloading from Google took 2.18700003624
Failed to make identify query: u'http://books.google.com/books/feeds/volumes?q=intitle%3ADer+intitle%3AMaskensch%C3%B6p fer%2Binauthor%3AMichael+inauthor%3AMarcus+inautho r%3AThurner&max-results=20&min-viewability=none&start-index=1'
Traceback (most recent call last):
File "site-packages\calibre\ebooks\metadata\sources\google.py ", line 303, in identify
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_mechanize.py", line 199, in open_novisit
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_mechanize.py", line 230, in _mech_open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_opener.py", line 193, in open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 344, in _open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 332, in _call_chain
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 1142, in http_open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 1118, in do_open
URLError: <urlopen error [Errno 10013] Der Zugriff auf einen Socket war aufgrund der Zugriffsrechte des Sockets unzulässig>

************************************************** ******************************

****************************** Amazon.com ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 6.2; rv:9.0.1) Gecko/20100101 Firefox/9.0.1')]
Found 0 results
Downloading from Amazon.com took 0.756999969482
Failed to make identify query: u'http://www.amazon.com/s/?sort=relevanceexprank&search-alias=aps&field-keywords=B007PI2IAA&unfiltered=1'
Traceback (most recent call last):
File "site-packages\calibre\ebooks\metadata\sources\amazon.py ", line 732, in identify
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_mechanize.py", line 199, in open_novisit
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_mechanize.py", line 230, in _mech_open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_opener.py", line 193, in open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 344, in _open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 332, in _call_chain
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 1142, in http_open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 1118, in do_open
URLError: <urlopen error [Errno 10013] Der Zugriff auf einen Socket war aufgrund der Zugriffsrechte des Sockets unzulässig>

************************************************** ******************************

****************************** ISBNDB ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.63 Safari/534.3')]
Found 0 results
Downloading from ISBNDB took 1.44199991226
Failed to make query to ISBNDb, aborting.
Traceback (most recent call last):
File "site-packages\calibre\ebooks\metadata\sources\isbndb.py ", line 106, in identify
File "site-packages\calibre\ebooks\metadata\sources\isbndb.py ", line 214, in make_query
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_mechanize.py", line 199, in open_novisit
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_mechanize.py", line 230, in _mech_open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_opener.py", line 193, in open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 344, in _open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 332, in _call_chain
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 1142, in http_open
File "site-packages\mechanize-0.2.4-py2.7.egg\mechanize\_urllib2_fork.py", line 1118, in do_open
URLError: <urlopen error [Errno 10013] Der Zugriff auf einen Socket war aufgrund der Zugriffsrechte des Sockets unzulässig>

************************************************** ******************************
The identify phase took 2.22 seconds
The longest time (2.187000) was taken by: Google
Merging results from different sources and finding earliest publication dates from the xisbn service
We have 0 merged results, merging took: 0.00 seconds

I'm from Germany, so a tranlation for the error-message:
"Der Zugriff auf einen Socket war aufgrund der Zugriffsrechte des Sockets unzulässig"
means
"No permissions to access socket"

With last Version it works yesterday perfectly (with this book)

I don't speak Python (more asm, c++) so I have no idea where the error is.

I hope somebody can help
Elric