error when installing

receive this error when installing from wordpress install

Downloading install package from https://downloads.wp.xz.cn/plugin/bookly-responsive-appointment-booking-tool.3.3.zip…

Unpacking the package…

Could not copy file. bookly-responsive-appointment-booking-tool/backend/modules/calendar/resources/css/jquery-ui-1.10.4/images/ui-bg_highlight-soft_75_cccccc_1x100.png

https://ww.wp.xz.cn/plugins/bookly-responsive-appointment-booking-tool/