dynamic sub domains not working, nodejs

I am looking for a skilled developer who can help me solve an issue with dynamic subdomains on my VPS/Dedicated Server. Currently, the dynamic subdomains are not working and I am seeking someone who has experience with Node.js to help me resolve this issue.

Server Environment: VPS/Dedicated Server

Domain Name and Hosting Provider: Known

Error Messages/Logs: Not available

Ideal Skills and Experience:
- Strong experience with Node.js
- Familiarity with VPS/Dedicated Server environments
- Ability to troubleshoot and solve technical issues quickly and efficiently.