"Sources is invalid" when saving entry

[jesuismaxime]

Lastest plugin version, lastest Craft version and got this log :

2019-04-08 09:06:08 [-][3][-][error][timkelty\craftcms\sitesync\Field::normalizeValue] Syncable failed validation: Array
(
    [sources] => Array
        (
            [0] => Sources est invalide.
        )

)

I dont have any 'Sources' field so I guess it coming from the plugin (or a conflict with another).

I use SEO, SuperTable and Neo on the section/entry type I need to sync. I test with a new/empty entry and still not able to sync my content.

"Sources est invalide." translate to "Sources is invalid"