php 7 incompatibility

Hi,

I just run the php7 compatibility plugin by WPengine, and I get this warnings and errors:

FILE: /var/www/————/wp-content/plugins/amr-users/uninstall.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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1 | WARNING | File has mixed line endings; this may cause incorrect results
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FILE: /var/www/————/wp-content/plugins/amr-users/includes/amr-users-widget.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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1 | WARNING | File has mixed line endings; this may cause incorrect results
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FILE: /var/www/————/wp-content/plugins/amr-users/includes/amr-users-csv.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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1 | WARNING | File has mixed line endings; this may cause incorrect results
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FILE: /var/www/————/wp-content/plugins/amr-users/includes/ameta-cache.php
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FOUND 1 ERROR AND 1 WARNING AFFECTING 2 LINES
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1 | WARNING | File has mixed line endings; this may cause incorrect results
291 | ERROR | ‘clone’ is a reserved keyword introduced in PHP version 5.0 and cannot be invoked as a function (T_CLONE)
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FILE: /var/www/————/wp-content/plugins/amr-users/includes/ameta-includes.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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1 | WARNING | File has mixed line endings; this may cause incorrect results
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