Updated to 12.1

[AlainPierlot]

I have created a photoalbum in the module book of Lightroom Classic (version14.1.1 - Licence creative cloud - windows 11). As usual I click at the bottom right below to send my book to Blurb. After 15 minutes of uploading I get the message that an error has occurred while creating the book. When I click  at the bottom left below or right on the top (selection PDF instead of book Blurb) I get the message that an error has occurred while creating the PDF (only the cover of the photobook was transferred).  

My work is done, but now I can't manage to export my album! In the meantime I have created a new catalog, make the cache empty, had my laptop checked for performance and viruses. The album still can't get out.

Can someone  who has had a simular problem give me some useful tips?

[Rob_Cullen]

I gave an answer in this link that you could work through the suggestions-

https://community.adobe.com/t5/lightroom-classic-discussions/book-problem/m-p/11718974#M218871

The last post suggested that changing fonts solved the problem.