It’s possible your contact information is old.
Other ways to reach influencers:
- Contact them via Direct Message on their Social Media Platforms
- Look in their online bios -- many add their email address in Instagram, YouTube and LinkedIn bios.
- Google them. (A surprising amount have their email address public.)
- Are they on Patreon.com? (Some emails can be accessed directly there.)
- Do they have a Blog or Website? (Use their contact form.)
- Do they have a manager or agent? (Use https://pro.imdb.com to identify the agents and managers of actors and other celebrities.)
- Do they collaborate or associate with someone? (Contact that person and ask for the best way to reach the influencer. It’s surprisingly common that their spouse or partner also has a social media following.)