PHP Warning in hosting

[Marco]

Hi, when a broswer visualize certain gpx a “error_log_php” file in my hosting root increase its dimension with error like this: “PHP Warning: simplexml_load_string(): namespace error : Namespace prefix gpxx on DisplayColor is not defined in /home/******/public_html/wp-content/plugins/wp-gpx-maps/wp-gpx-maps-utils.php on line 223”
the log file is getting bigger and bigger and my service provider recommends me to fix it

[Autore]

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