Issue with syncing contacts from any device after trying to sync using Thunderbird

[IcedRooibos]

Hi there,

I have succesfully synced across devices using Thunderbird but today I encountered an issue that seems to have broken something. I pressed "Sync Now"

And after doing that a few times, things wouldn't sync anymore. I tried to restart my computers and that didn't seem to help. I tried to remove the account from thunderbird and re-add but I now get a HTTP:500 error from the service. The event log is as follows:

URL:
https://localhost:37358/**[[MYEMAILID]]**/ (PROPFIND)

Request:
<d:propfind xmlns:d="DAV:" xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/"><d:prop><cal:calendar-home-set /><d:group-membership /></d:prop></d:propfind>

Response:
A server error occurred.  Please contact the administrator.

URL:
https://localhost:37358/**[[MYEMAILID]]**/ (PROPFIND)

Request:
<d:propfind xmlns:d="DAV:" xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/"><d:prop><cal:calendar-home-set /><d:group-membership /></d:prop></d:propfind>

Response:
A server error occurred.  Please contact the administrator.

Then I tried to use the migration to ETESync2.0 tool in case that fixed whatever was broken and got this error:

Do you know how I might be able to fix this? Please let me know if there's any other info I can provide that might be helpful, tried to include everything I could think of.

Thank you!

[IcedRooibos]

Ok I deleted one of the contact groups that seemed to be the problem group (recently created etc) and stuff seems to be fixed. I could migrate to ETESync2.0 and my thunderbird syncs again.

Thank you.

[tasn]

Glad to hear you figured it out. :)