Error message

• Warning: file_put_contents(temporary://fileMFw7hj): failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed 在 file_unmanaged_save_data() (行 1938 在 /www/wwwroot/garchianglawyer.com/includes/file.inc).
• 文件无法创建。
• Warning: file_put_contents(temporary://file8IDzhl): failed to open stream: "DrupalTemporaryStreamWrapper::stream_open" call failed 在 file_unmanaged_save_data() (行 1938 在 /www/wwwroot/garchianglawyer.com/includes/file.inc).
• 文件无法创建。
• Warning: chmod(): Operation not permitted in _event_css_add() (line 272 of /www/wwwroot/garchianglawyer.com/sites/all/modules/event_calendar/event_calendar_colors/event_calendar_colors.module).