Hello,
I’ve had the same problem.
Just change line 58 and 59 and use the add_options_page function to add the wetter.info settings page to the Settings menu.
if (function_exists('add_options_page')) {
add_options_page('wetter.info Wetter', 'wetter.info', 'manage_options', 'wetterinfo_config', 'wetterinfo_config');
Please get this bugfixed.
Thanks
I will write you a separate email on wetter.info homepage.
Thanks