Not able to access angular html from my normal html website

I have simple HTML website.

I want to redirect to angular website on click of button in html website.

I have hosted HTML website and Angular build also on same server Hostinger.

This is the simple HTML button from which I want to redirect to angular project

 <header class="manpower_inquiry">
        <div class="manpower_inquiry__text-box">
            <h1 class="heading-primary">
                <span class="heading--top">manpower supply</span>
                <br/>
                <!-- <span class="heading-primary--sub--service">Leading Retail security providers
                </span> -->
            </h1>

            <a href="../inquiry/MAN_P/index.html" class="btn btn--white btn--animated">Inquiry</a>
        </div>
  </header>

This is the Angular build on Hostinger

The html page from which I'm redirecting

The error I'm getting

This is my Angular project routing

Please help me to resolve this.

Thanks