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I moved a Drupal site from GoDaddy to AWS. Everything seems to work except on the contact page displays the following errors:

warning: array_map() expects parameter 1 to be a valid callback, function 'utf8_encode' not found or invalid function name in /var/www/html/includes/unicode.inc on line 304.
: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /var/www/html/includes/unicode.inc on line 311.
: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /var/www/html/includes/unicode.inc on line 311.
: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /var/www/html/includes/unicode.inc on line 311.

This is line 304:

      $table = array_map('utf8_encode', $table);

This is line 311:

    return preg_replace('/&(#x?)?([A-Za-z0-9]+);/e', '_decode_entities("$1", "$2", "$0", $newtable, $exclude)', $text);
}

I tried changing to preg_replace_callback and that caused another error.

I am running php 5.6 if that helps. Thanks in advance.

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