PHP 7 Compatibility

Hi, we are testing for PHP 7 compatibility and the plugin yields these errors:

FILE: /wp-content/plugins/wp-ui/inc/wpuimce/wpui_mce.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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8 | WARNING | Use of deprecated PHP4 style class constructor is not supported since PHP 7.
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FILE: /wp-content/plugins/wp-ui/inc/widgets-old.php
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FOUND 0 ERRORS AND 2 WARNINGS AFFECTING 2 LINES
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9 | WARNING | Use of deprecated PHP4 style class constructor is not supported since PHP 7.
347 | WARNING | Use of deprecated PHP4 style class constructor is not supported since PHP 7.
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FILE: /wp-content/plugins/wp-ui/inc/widgets.php
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FOUND 0 ERRORS AND 2 WARNINGS AFFECTING 2 LINES
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150 | WARNING | Use of deprecated PHP4 style class constructor is not supported since PHP 7.
302 | WARNING | Use of deprecated PHP4 style class constructor is not supported since PHP 7.
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FILE: /wp-content/plugins/wp-ui/inc/wpui-helpers.php
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FOUND 1 ERROR AFFECTING 1 LINE
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782 | ERROR | preg_replace() – /e modifier is deprecated since PHP 5.5 and removed since PHP 7.0
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Can you help address these?