Server problems? No sync since yesterday

Hello,
our research group decided to give zotero a try and use it for sharing citations. However, since yesterday we are unable to use it. The group library is not synchronized. The errors are manifold: sometimes the green arrow keeps spinning and say: "Upload accepted - waiting for server" and this for many hours. Sometimes there (at least at my PC) is the error : Component returned failure code: 0x80520015 (NS_ERROR_FILE_ACCESS_DENIED) [nsIFile.lastModifiedTime] (Report ID: 253657871). Other times there shows up: "File sync in operation".
Is there too much traffic on the servers, as yesterday the 2.0 moved to final?

This is an old discussion that has not been active in a long time. Instead of commenting here, you should start a new discussion. If you think the content of this discussion is still relevant, you can link to it from your new discussion.