Hello,

In Control Panel avatars are allowed, and the folder /images/avatars has 777, but users can't upload avatars, as you can see in the attached picture. Any Idea?

Yes.

The spanish language file misses the string for the link name. Here as examples the matching sequence of other language files.

english.lang

[user_edit] # <- line #564
edit_user_name =                  User name:
edit_avatar =                     Avatar:
edit_avatar_link =                edit avatar
edit_user_type =                  Type:

german.lang

[user_edit] # <- line #556
edit_user_name =                  Benutzername:
edit_avatar =                     Avatar:
edit_avatar_link =                Avatar bearbeiten
edit_user_type =                  Typ:

spanish.lang

[user_edit] # <- line #559
edit_user_name =                  Nombre de usuario: 
edit_avatar =                     Avatar:
add_avatar_link =                 anadir avatar       # <- wrong variable name
edit_avatar_link_title =          editar avatar       # <- unknown variable name
edit_user_type =                  Tipo:

Please correct the variable name and report if it was successful.

*btw* The translator added a notice in the file header. If you are interested you are free to search for missing strings to translate and release it here.

# Translation not complete!
# Not yet translated strings are marked with <!-- TODO -->

Tschö, Auge