The Pattern for user account page paths is using the following invalid tokens: [user:name]

Hi,
I was trying to change some patterns, but when I enter the "admin/config/search/path/patterns" site, I get these error messages (see below) and can't change anything. Does anyone know how to fix this?
(I'm using Drupal 7.20, Token 7.x-1.5, Transliteration 7.x-3.1, File (Field) Paths 7.x-1.0-beta3)

Notice: Undefined index: name in token_asort_tokens() (Zeile 569 von /var/www/webxx/html/xxx/sites/all/modules/token/token.module).
Notice: Undefined index: name in token_asort_tokens() (Zeile 569 von /var/www/webxx/html/xxx/sites/all/modules/token/token.module).
Warning: uasort() [function.uasort]: Array was modified by the user comparison function in token_get_info() (Zeile 529 von /var/www/webxx/html/xxx/sites/all/modules/token/token.module).
The Pattern for user account page paths is using the following invalid tokens: [user:name].