error

Getting this error after installing the plugin

http://prntscr.com/spsza

i’m using this plugin on 2 other site http://www.hoornaanzee.nl and http://www.hlne.nl and it’s working perfect but on 2 other sites only errors. All the settings are the same on all the 4 sites.

http://ww.wp.xz.cn/extend/plugins/weather-widget-esotanc-weather/