Error message

The following error message appeared:
I am sending it fyi
WP StatisticsSee Errors
FILE: /home/davids30/public_html/wp-content/plugins/wp-statistics/includes/optimization/tabs/wps-optimization-resources.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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247 | WARNING | INI directive ‘safe_mode’ is deprecated since PHP 5.3 and removed since PHP 5.4.
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FILE: /home/davids30/public_html/wp-content/plugins/wp-statistics/includes/settings/tabs/wps-externals.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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218 | WARNING | INI directive ‘safe_mode’ is deprecated since PHP 5.3 and removed since PHP 5.4.
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FILE: /home/davids30/public_html/wp-content/plugins/wp-statistics/includes/functions/functions.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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1151 | WARNING | INI directive ‘safe_mode’ is deprecated since PHP 5.3 and removed since PHP 5.4.
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FILE: /home/davids30/public_html/wp-content/plugins/wp-statistics/includes/vendor/symfony/debug/ErrorHandler.php
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FOUND 1 ERROR AFFECTING 1 LINE
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143 | ERROR | Using a call-time pass-by-reference is deprecated since PHP 5.3 and prohibited since PHP 5.4
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