PHP 7.1 Compatibility Error

HI,

I did a check of my blog for PHP 7.1 Compatibility Issues. I found the following error (not a warning, it’s an error):

FILE: /wp-content/plugins/opt-out-for-google-analytics/inc/singleton.class.php
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FOUND 1 ERROR AFFECTING 1 LINE
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45 | ERROR | Visibility for magic method __sleep must be public. Found: protected

Can you fix it?

Thanks in advance,

Alex

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