Shorter etesync-dav log, just the error I get when I try to sync a calendar

etesync-dav.log

[7f59aeec8700] INFO: Starting Radicale
[7f59aeec8700] DEBUG: Authentication type is htpasswd
[7f59aeec8700] DEBUG: Listening to localhost port 37358
[7f59aeec8700] DEBUG: Radicale server ready
[7f59a51e0700] INFO: PROPFIND request for /zack@zacharyspector.com/42e5f4a018f5ffd915aec9b3e41ba91e6e09fe7b4d0e62a63e80088dbd96abbe/ with depth 0 received from 127.0.0.1 using "Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 Lightning/5.4.2.1"
[7f59a51e0700] DEBUG: Request headers:
{'CONTENT_LENGTH': '306',
 'CONTENT_TYPE': 'text/xml; charset=utf-8',
 'GATEWAY_INTERFACE': 'CGI/1.1',
 'HTTP_ACCEPT': 'text/xml',
 'HTTP_ACCEPT_CHARSET': 'utf-8,*;q=0.1',
 'HTTP_ACCEPT_ENCODING': 'gzip, deflate',
 'HTTP_ACCEPT_LANGUAGE': 'en-US,en;q=0.5',
 'HTTP_AUTHORIZATION': 'Basic **masked**',
 'HTTP_CACHE_CONTROL': 'no-cache',
 'HTTP_CONNECTION': 'keep-alive',
 'HTTP_DEPTH': '0',
 'HTTP_HOST': 'localhost:37358',
 'HTTP_PRAGMA': 'no-cache',
 'HTTP_USER_AGENT': 'Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 '
                    'Thunderbird/52.2.1 Lightning/5.4.2.1',
 'PATH_INFO': '/zack@zacharyspector.com/42e5f4a018f5ffd915aec9b3e41ba91e6e09fe7b4d0e62a63e80088dbd96abbe/',
 'QUERY_STRING': '',
 'REMOTE_ADDR': '127.0.0.1',
 'REMOTE_HOST': '',
 'REQUEST_METHOD': 'PROPFIND',
 'SCRIPT_NAME': '',
 'SERVER_NAME': 'localhost',
 'SERVER_PORT': '37358',
 'SERVER_PROTOCOL': 'HTTP/1.1',
 'SERVER_SOFTWARE': 'WSGIServer/0.2',
 'wsgi.errors': <_io.StringIO object at 0x7f59abd98a68>,
 'wsgi.file_wrapper': <class 'wsgiref.util.FileWrapper'>,
 'wsgi.input': <_io.BufferedReader name=6>,
 'wsgi.multiprocess': False,
 'wsgi.multithread': True,
 'wsgi.run_once': False,
 'wsgi.url_scheme': 'http',
 'wsgi.version': (1, 0)}
[7f59a51e0700] DEBUG: Sanitized script name: 
[7f59a51e0700] DEBUG: Sanitized path: /zack@zacharyspector.com/42e5f4a018f5ffd915aec9b3e41ba91e6e09fe7b4d0e62a63e80088dbd96abbe/
[7f59a51e0700] DEBUG: Rights type 'owner_only'
[7f59a51e0700] DEBUG: Test if 'zack@zacharyspector.com:zack@zacharyspector.com' matches against '.+:zack\@zacharyspector\.com(/.*)?' from section 'rw'
[7f59a51e0700] DEBUG: Section 'rw' matches
[7f59a51e0700] DEBUG: Rights type 'owner_only'
[7f59a51e0700] DEBUG: Test if 'zack@zacharyspector.com:zack@zacharyspector.com/42e5f4a018f5ffd915aec9b3e41ba91e6e09fe7b4d0e62a63e80088dbd96abbe' matches against '.+:zack\@zacharyspector\.com(/.*)?' from section 'rw'
[7f59a51e0700] DEBUG: Section 'rw' matches
[7f59a51e0700] DEBUG: Rights type 'owner_only'
[7f59a51e0700] DEBUG: Test if 'zack@zacharyspector.com:zack@zacharyspector.com' matches against '.+:zack\@zacharyspector\.com(/.*)?' from section 'rw'
[7f59a51e0700] DEBUG: Section 'rw' matches
[7f59a51e0700] DEBUG: Request content:
<?xml version="1.0" encoding="UTF-8"?>
<D:propfind xmlns:D="DAV:" xmlns:CS="http://calendarserver.org/ns/" xmlns:C="urn:ietf:params:xml:ns:caldav"><D:prop><D:resourcetype/><D:owner/><D:current-user-principal/><D:supported-report-set/><C:supported-calendar-component-set/><CS:getctag/></D:prop></D:propfind>
[7f599fd8c700] INFO: PROPFIND request for /zack@zacharyspector.com/ with depth 1 received from 127.0.0.1 using "Thunderbird CardBook/19.7 Lightning/5.4.2.1"
[7f599fd8c700] DEBUG: Request headers:
{'CONTENT_LENGTH': '126',
 'CONTENT_TYPE': 'application/xml; charset=utf-8',
 'GATEWAY_INTERFACE': 'CGI/1.1',
 'HTTP_ACCEPT': '*/*',
 'HTTP_ACCEPT_ENCODING': 'gzip, deflate',
 'HTTP_ACCEPT_LANGUAGE': 'en-US,en;q=0.5',
 'HTTP_AUTHORIZATION': 'Basic **masked**',
 'HTTP_CONNECTION': 'keep-alive',
 'HTTP_DEPTH': '1',
 'HTTP_HOST': 'localhost:37358',
 'HTTP_USER_AGENT': 'Thunderbird CardBook/19.7 Lightning/5.4.2.1',
 'PATH_INFO': '/zack@zacharyspector.com/',
 'QUERY_STRING': '',
 'REMOTE_ADDR': '127.0.0.1',
 'REMOTE_HOST': '',
 'REQUEST_METHOD': 'PROPFIND',
 'SCRIPT_NAME': '',
 'SERVER_NAME': 'localhost',
 'SERVER_PORT': '37358',
 'SERVER_PROTOCOL': 'HTTP/1.1',
 'SERVER_SOFTWARE': 'WSGIServer/0.2',
 'wsgi.errors': <_io.StringIO object at 0x7f59a4038948>,
 'wsgi.file_wrapper': <class 'wsgiref.util.FileWrapper'>,
 'wsgi.input': <_io.BufferedReader name=10>,
 'wsgi.multiprocess': False,
 'wsgi.multithread': True,
 'wsgi.run_once': False,
 'wsgi.url_scheme': 'http',
 'wsgi.version': (1, 0)}
[7f599fd8c700] DEBUG: Sanitized script name: 
[7f599fd8c700] DEBUG: Sanitized path: /zack@zacharyspector.com/
[7f599fd8c700] INFO: Failed login attempt: zack@zacharyspector.com
[7f599fd8c700] DEBUG: Sleeping 0.725 seconds
[7f599fd8c700] DEBUG: Asking client for authentication
[7f599fd8c700] DEBUG: Response content:
Access to the requested resource forbidden.
[7f599fd8c700] INFO: PROPFIND answer status for /zack@zacharyspector.com/ with depth 1 in 0.729 seconds: 401 Unauthorized