Unfortunately, it may happen that some sites are subject to manual action by Google. In other words, they were penalized by the search engine because, in particular, of the use of practices not recommended in the guidelines.
The consequences are usually a significant drop in traffic or positioning, or even removal of the website from search results. You can imagine how dangerous it is to let this situation drag on, which can lead to heavy losses.
If you are under such a sanction, it is at this level of the SEO campaign that our consultants will put in place the best strategy for it to be lifted.