Error when attempting to publish a collection (Flickr)

Hi,

Lightroom Classic v13.5.1 on Mac Sonoma 14.6.1

I'm trying to publish a collection to Flickr and I get an error message:-

Can't update this collection.

An internal error has occurred: Error Domain=NSXMLParserErrorDomain

Code=76 "Line 4: Opening and ending tag mismatch: META line 2 and HEAD

Userinfo={NSLocalizedDescription=Line

4: Opening and ending tag mismatch:

META line 2 and HEAD

Anyone else getting this message?

Si