Nunjucks cant find templates on server

[zjti]

i tried to use a server-side-template :
<div hx-ext="client-side-templates"> <form hx-get="https://api...." hx-swap="innerHTML" hx-target="#content" nunjucks-array-template="partials/oa1.html" > <input type="text" name="search" placeholder="Title" /> <button type="submit">Submit</button> </form> <p id="content">Start</p> </div>

but it doesnt find the the serverside template.
it thorws an error at line 87 ("/client-side-templates.js") :
var template = htmx.find("#" + templateName);

i am using htmx v2