Dynamic Pricing for WooCommerce

Fatal error: Uncaught TypeError: round(): Argument #1 ($num) must be of type int|float, string given in /home/staging.kingnature.ch/public_html/content/plugins/woocommerce-dynamic-pricing/classes/modules/class-wc-dynamic-pricing-simple-membership.php:392

Fix

$fixed_price = round( $amount, (int) $num_decimals );

to

$fixed_price = round( (float) $amount, (int) $num_decimals );