Press.
	 * @param string $overlay_image The ID of the post.
	 * @param string $position      Image position.
	 */
	private function create_overlay_image( $image_file, $overlay_image, $position ) {
		wp_raise_memory_limit( 'image' );

		/**
		 * Filter: 'rank_math/social/create_overlay_image' - Change the create_overlay_image arguments.
		 */
		$args = $this->do_filter( 'social/create_overlay_image', compact( 'image_file', 'overlay_image', 'position' ) );
		extract( $args ); // phpcs:ignore

		if ( empty( $image_file ) || empty( $overlay_image ) ) {
			return;
		}

		$method = 'generate_image_' . $this->image_module;
		$this->$method( $image_file, $overlay_image, $position );
		die();
	}

	/**
	 * Generate image using the GD module.
	 *
	 * @param string $image_file    The permalink generated for this post by WordPress.
	 * @param string $overlay_image The ID of the post.
	 * @param string $position      Image position.
	 */
	private function generate_image_gd( $image_file, $overlay_image, $position ) {
		$imagecreatefrom         = $this->get_imagecreatefrom_method( $image_file );
		$overlay_imagecreatefrom = $this->get_imagecreatefrom_method( $overlay_image );
		if ( ! $imagecreatefrom || ! $overlay_imagecreatefrom ) {
			return;
		}

		$stamp = $overlay_imagecreatefrom( $overlay_image );
		$image = $imagecreatefrom( $image_file );

		if ( ! $image || ! $stamp ) {
			return;
		}

		$stamp_width  = imagesx( $stamp );
		$stamp_height = imagesy( $stamp );

		$img_width  = imagesx( $image );

		if ( $stamp_width > $img_width ) {
			$stamp = imagescale( $stamp, $img_width );
		}

		$margins = $this->get_position_margins_gd( $position, $image, $stamp );

		// Copy the stamp image onto our photo using the margin offsets and the photo width to calculate positioning of the stamp.
		imagecopy( $image, $stamp, $margins['left'], $margins['top'], 0, 0, $stamp_width, $stamp_height );

		// Output and free memory.
		header( 'Content-type: image/png' );
		imagepng( $image );
		imagedestroy( $image );
	}

	/**
	 * Generate image using the Imagick module.
	 *
	 * @param string $image_file    The permalink generated for this post by WordPress.
	 * @param string $overlay_image The ID of the post.
	 * @param string $position      Image position.
	 *
	 * @return void
	 */
	private function generate_image_imagick( $image_file, $overlay_image, $position ) {
		try {
			$stamp = new \Imagick( $overlay_image );
			$image = new \Imagick( $image_file );

			if ( ! $image->valid() || ! $stamp->valid() || ! $image->getImageFormat() || ! $stamp->getImageFormat() ) {
				return;
			}

			// Select the first frame to handle animated images properly.
			if ( is_callable( [ $stamp, 'setIteratorIndex' ] ) ) {
				$stamp->setIteratorIndex( 0 );
			}
			if ( is_callable( [ $image, 'setIteratorIndex' ] ) ) {
				$image->setIteratorIndex( 0 );
			}
		} catch ( \Exception $e ) {
			return;
		}

		$stamp_width = $stamp->getImageWidth();
		$img_width   = $image->getImageWidth();

		if ( $stamp_width > $img_width ) {
			$stamp->resizeImage( $img_width, 0, \Imagick::FILTER_LANCZOS, 1 );
		}

		$margins = $this->get_position_margins_imagick( $position, $image, $stamp );

		// Copy the stamp image onto our photo using the margin offsets and the photo width to calculate positioning of the stamp.
		$image->compositeImage( $stamp, \Imagick::COMPOSITE_OVER, $margins['left'], $margins['top'] );

		// Output.
		header( 'Content-type: image/png' );
		echo $image->getImageBlob(); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped

		// Free memory.
		$image->clear();
		$image->destroy();

		$stamp->clear();
		$stamp->destroy();
	}

	/**
	 * Check if secret key is valid.
	 *
	 * @param int    $id     The ID of the attachment.
	 * @param string $type   Overlay type.
	 * @param string $secret Secret key.
	 *
	 * @return boolean
	 */
	private function is_secret_valid( $id, $type, $secret ) {
		return md5( $id . $type . wp_salt( 'nonce' ) ) === $secret;
	}
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class 'RankMath\Thumbnail_Overlay' not found in /home/candoodesigncom/public_html/wp-content/plugins/seo-by-rank-math/includes/class-common.php:51
Stack trace:
#0 /home/candoodesigncom/public_html/wp-content/plugins/seo-by-rank-math/rank-math.php(297): RankMath\Common-&gt;__construct()
#1 /home/candoodesigncom/public_html/wp-content/plugins/seo-by-rank-math/rank-math.php(185): RankMath-&gt;instantiate()
#2 /home/candoodesigncom/public_html/wp-content/plugins/seo-by-rank-math/rank-math.php(164): RankMath-&gt;setup()
#3 /home/candoodesigncom/public_html/wp-content/plugins/seo-by-rank-math/rank-math.php(554): RankMath::get()
#4 /home/candoodesigncom/public_html/wp-content/plugins/seo-by-rank-math/rank-math.php(558): rank_math()
#5 /home/candoodesigncom/public_html/wp-settings.php(522): include_once('/home/candoodes...')
#6 /home/candoodesigncom/public_html/wp-config.php(100): require_once('/home/candoodes...')
#7 /home/candoodesigncom/public_html/wp-load.php(50): require_once('/home/candoodes...')
#8 /hom in <b>/home/candoodesigncom/public_html/wp-content/plugins/seo-by-rank-math/includes/class-common.php</b> on line <b>51</b><br />