Error in downloading metadata

[Mari123]

#################### Log for First, Second, Forever ####################
Running identify query with parameters:
{'title': 'First, Second, Forever', 'authors': ['Jacqueline Ramsden'], 'identifiers': {}, 'timeout': 30}
Using plugins: Amazon.com (1, 3, 3)
The log from individual plugins is below

****************************** Amazon.com (1, 3, 3) ******************************
Found 0 results
Downloading from Amazon.com took 0.8336584568023682
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36
Server: amazon
Failed to make identify query: 'https://www.amazon.com/s/?search-alias=stripbooks&unfiltered=1&sort=relevanceexpran k&field-title=First%2c+Second%2c+Forever&field-author=Jacqueline+Ramsden'
Traceback (most recent call last):
File "calibre\ebooks\metadata\sources\amazon.py", line 1450, in search_amazon
File "mechanize\_mechanize.py", line 241, in open_novisit
File "mechanize\_mechanize.py", line 313, in _mech_open
mechanize._response.get_seek_wrapper_class.<locals >.httperror_seek_wrapper: HTTP Error 503: Service Unavailable

************************************************** ******************************
The identify phase took 1.03 seconds
The longest time (0.833658) was taken by: Amazon.com
Merging results from different sources
We have 0 merged results, merging took: 0.00 seconds
Failed to download metadata for First, Second, Forever



When I download metadata one by one or two, it mostly works but when I try bulk downloading(like more than ten), this sort of error pops up for all of the books. Sometimes I get them when I'm downloading just one book. I've already set my configure download-> metadata source to Amazon only. Help!!!!

[kovidgoyal]

Go to preferences->metadata download->configure the amazon plugin and change the server used back to auto.

And be aware that all the serves will limit bulk queries after a time.