Sudden drop of impressions in search console only on homepage

Hi, everyone

Need some help,

I had a sudden drop of impressions on my website and found out that it was only the homepage impressions that was the cause of the drop. I followed search console help troubleshooting (https://support.google.com/webmasters/answer/9079473?hl=en) to find that out.

The only change i made to the homepage that coincides with the start of the drop was the addition of a button on the homepage that linked to another page and i also added a facebook page plugin to the homepage.

I reverted those changes, but still not receiving the same amount of impressions as before. Would be great if someone can help.

Thank you