PHP7.2 Compatibility

I installed this plugin (and modified it a lot to work with my template) and ran a the PHP Compatibility plugin on my site for checking compatibility with PHP 7.2 and the below files were identified as not being compatible. Is there any chance you could update this plugin (or just this file) to be compatiblie with PHP 7.2? My site is not live yet, but when I go live, it will be on the PHP 7.2 and I’m afraid this plugin won’t work for my client.

FILE: /home/xxxx/public_html/beta/wp-content/plugins/in-memoriam-light-a-candle/lib/recaptchalib.php
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FOUND 4 ERRORS AFFECTING 3 LINES
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218 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
219 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
221 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
221 | ERROR | Function mcrypt_encrypt() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead

Thank You!