Uncaught ValueError: Unknown format specifier “k”

After updating the plugin from version 7.3.1 to 7.3.2 I’m getting the following fatal error breaking the site:

PHP Fatal error:  Uncaught ValueError: Unknown format specifier "k" in /.../wp-content/plugins/wp-whatsapp-chat/vendor_packages/wp-notice-plugin-promote.php:79
Stack trace:
#0 /.../wp-content/plugins/wp-whatsapp-chat/vendor_packages/wp-notice-plugin-promote.php(79): sprintf()
#1 /.../wp-content/plugins/wp-whatsapp-chat/wp-whatsapp-chat.php(53): require_once('...')
#2 /.../wp-settings.php(473): include_once('...')
#3 /.../wp-config.php(101): require_once('...')
#4 /.../wp-load.php(50): require_once('...')
#5 /.../wp-blog-header.php(13): require_once('...')
#6 /.../index.php(17): require('...')
#7 {main}
  thrown in /.../wp-content/plugins/wp-whatsapp-chat/vendor_packages/wp-notice-plugin-promote.php on line 79