The people were right. To be honest, my first impression visiting your site was that it’s looking exactly like a religious ritual or a Satan’s lover website. lol
Joking asides. Your design style was totally out-dated and inappropriate: the glow texts, texture logo, the wall??
My suggestion would be follow up the trends:
Simple white background - grey texts with many white spaces.
Choose a modern color palette - Pick a style (flat, shadow, gradient…)
Material design is still kind of an amazing tech-oriented design.
Immerse yourself in modern web designs, you will learn something for yourself.