Errors displayed with debug mode

Version of plugin : 0.9.8.2

Hi,

I meet these errors in debug mode:

Strict Standards: call_user_func_array() expects parameter 1 to be a valid callback, non-static method MslsPlugin::init_widget() should not be called statically in /var/www/wp-includes/plugin.php on line 429

Strict Standards: Accessing static property MslsRegistry::$arr as non static in /var/www/wp-content/plugins/multisite-language-switcher/includes/MslsRegistry.php on line 52

Strict Standards: Accessing static property MslsRegistry::$arr as non static in /var/www/wp-content/plugins/multisite-language-switcher/includes/MslsRegistry.php on line 42

Otherwise this seems to be working correctly.

Thanks

https://www.ads-software.com/plugins/multisite-language-switcher/