Tengo un Mensaje de Warning: Compilation Failed

Hola
Acabo de instalar el nuevo drupal 6.19 en un host y me sale este mensaje:

Drupal installation complete
warning: Compilation failed: range out of order in character class at offset 10 in /home/domains/web/modules/user/user.module on line 393.
Congratulations, Drupal has been successfully installed.

Please review the messages above before continuing on to your new site.

Alguien sabe que pasa??