Hi guys, I am new, I am new aspiring dev, I am trying to deploy growthbook on digital occean droplets but have this error. I am not sure what is the cause of the error. Thank you

Hello. Looks like it's not able to connect to MongoDB. Did you deploy that to digital ocean as well? Make sure you set the MONGODB_URI environment variable correctly.

Thank you for your response. I am new as well on digital ocean I used droplet to deploy the app. and pretty sure I added the .env files on the server which contains the MONGODB_URI, but same error persist