PHP compatibility issue?

Hi, I was trying to test PHP compatibility with PHP Compatibility Checker plugin and found that your plugin has some issues as below >

FILE: /public_html/wp-content/plugins/all-in-one-wp-security-and-firewall/classes/wp-security-utility.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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751 | WARNING | Since PHP 7.0, functions inspecting arguments, like debug_backtrace(), no longer report the original value as passed to a parameter, but will instead provide the current value. The parameter “$logs” was used, and possibly changed (by reference), on line 743.
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FILE: /public_html/wp-content/plugins/all-in-one-wp-security-and-firewall/classes/wp-security-user-login.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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332 | WARNING | Since PHP 7.0, functions inspecting arguments, like debug_backtrace(), no longer report the original value as passed to a parameter, but will instead provide the current value. The parameter “$username” was used, and possibly changed (by reference), on line 314.
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FILE: /public_html/wp-content/plugins/all-in-one-wp-security-and-firewall/includes/simba-tfa/providers/totp-hotp/loader.php
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FOUND 24 ERRORS AFFECTING 3 LINES
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963 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
963 | ERROR | Function mcrypt_get_iv_size() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
963 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
963 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
963 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
963 | ERROR | Function mcrypt_get_iv_size() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
963 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
963 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
975 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
975 | ERROR | Function mcrypt_encrypt() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
975 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
975 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
975 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
975 | ERROR | Function mcrypt_encrypt() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
975 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
975 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
983 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
983 | ERROR | Function mcrypt_decrypt() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
983 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
983 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
983 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
983 | ERROR | Function mcrypt_decrypt() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
983 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
983 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
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FILE: /public_html/wp-content/plugins/all-in-one-wp-security-and-firewall/includes/simba-tfa/simba-tfa.php
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FOUND 6 ERRORS AFFECTING 1 LINE
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566 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
566 | ERROR | Function mcrypt_create_iv() is deprecated since PHP 7.1 and removed since PHP 7.2; Use random_bytes() or OpenSSL instead
566 | ERROR | The constant “MCRYPT_RAND” is deprecated since PHP 7.1 and removed since PHP 7.2
566 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
566 | ERROR | Function mcrypt_create_iv() is deprecated since PHP 7.1 and removed since PHP 7.2; Use random_bytes() or OpenSSL instead
566 | ERROR | The constant “MCRYPT_RAND” is deprecated since PHP 7.1 and removed since PHP 7.2
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WP hive also shows some error for combability.

Also are you planning to update this plugin with respect to support PHP version 8.1?