This error may come up when exporting data from Facebook and Yandex.Direct.
In the case of Yandex.Direct, Smart banners, Search banners or Dynamic campaigns may cause this error. For now, the info about them is unavailable because of API Yandex.Direct. Yandex is going to support such ads in the near future. However, there's no definite implementation timeline.
In the case of Facebook, this error may occur because of some restricted content (e.g. country or age restrictions).
Currently, there's no possibility to import cost data for these types of ads automatically. We suggest you use OWOX BI Data Upload Add-on to send this cost data manually.