Thanks for reaching out. While we can't cover specifics, you can definitely appeal if you believe the strike was in error: https://yt.be/help/qkY8 . Also, mind sharing your channel URL for us to look into it? Keep us posted.
Hmm, if we find that your content was in violation of our Community Guidelines, and your appeal was rejected, the strike will stay for 90 days. Note that the video will remain down from the site. Hope this clarifies.