- Addon::unregisterHook('load_config', 'addon/libravatar/libravatar.php', 'libravatar_load_config');
- Addon::unregisterHook('avatar_lookup', 'addon/libravatar/libravatar.php', 'libravatar_lookup');
+ Hook::unregister('load_config', 'addon/libravatar/libravatar.php', 'libravatar_load_config');
+ Hook::unregister('avatar_lookup', 'addon/libravatar/libravatar.php', 'libravatar_lookup');