It is done! I restart openfire then and it works !!
On the other hand, I obviously have flaws in some titles in the genre ??? index.cs_blog ??? on the home page in the yellow box instead of “Ignite Realtime News” (there are plenty of other; ??? plugin.admin.upload_plugin ???, ??? plugin.available.file_size ???, etc. …). But it only happens when I’m in French. As soon as I switch to English it is displayed well. So I think it’s a problem when translating? It does not seem to be a problem with the operation of openfire anyway.
I keep the procedure as it seems logical that I should do it on the next updates where the connector will be changed every time.
Thank you for your help anyway!
Have a good day!
Stéphane