I would like to add few ,

1. Did you installed some langauge pack? from where?

Please continue as advised in
https://www.opensource-socialnetwork.org/wiki/view/1101/how-to-report-a-bug-error-issue

Hello,
I still haven't found a solution to my problem.
Do I have to uninstall the components one by one to find the problem?
Do I have to reinstall the files on the ftp?
For information I cleaned the database of the server.
I have the same problem in back office and frontend
Do you have a solution to my problem?
Thanks

Hello,
Here is the error I have in the site menus
Thanks

Please provide an example of such a 'coding problem'

Hi,
I would like to delete them, it creates coding problems in the sections of the site.

You may use https://www.opensource-socialnetwork.org/component/view/5909/languages-list if you wanted to limit langauge selection.

If this is not the reason can you mention why you wish to delete those files?