status of some registrations changed after update to 1.7

I get some notices during cron since update from 1.6 to 1.7.

Notice : Undefined property: RegistrationType::$held_expire dans registration_cron() (line 1244 in /sites/all/modules/registration/registration.module).
Notice : Undefined property: RegistrationType::$held_expire dans registration_cron() (line 1244 in /sites/all/modules/registration/registration.module).
Notice : Undefined property: RegistrationType::$held_expire_state dans registration_cron() (line 1246 in /sites/all/modules/registration/registration.module).

Any idea?
Thank you