Using view() in Sage 10 and acf block leads to fatal memory

sage
,
1

Im trying to migrate my theme from sage 9 to 10 and everything works so far.

but when i try to use my acf blocks everything breaks:

registering my block / acf with block.json

add_action( 'init', function() {
    register_block_type(__DIR__ . '/blocks/intro');
} );

render template

<?php

$className = 'intro';

$id = 'intro';

if ( ! empty( $block['anchor'] ) ) {
    $id = $block['anchor'];
}

if ( ! empty( $block['className'] ) ) {
    $className .= ' ' . $block['className'];
}

if ( ! empty( $block['align'] ) ) {
    $className .= ' align' . $block['align'];
}


$background_image = get_field( 'hintergrund_bild' ) ?: null;

$template = [
    [
        'core/heading',
        [
            'textAlign' => 'left',
            'level'     => 1,
            'content'   => '<strong>Die Therapien<br></strong>im Überblick',
            'textColor' => 'white'
        ]
    ],
    [
        'core/paragraph',
        [
            'textColor' => 'white',
            'textAlign' => 'left',
            'content'   => 'Ausgezeichnete Medizinische Bewegungstherapie für Schmerzpatienten',
        ]
    ],
];

echo view( 'blocks/intro', compact( 'className', 'id', 'background_image', 'template' ) )->render();

when im just using echo "hello world"; everythin works