Update Failed

I keep getting this error when trying to update my theme:

Updating Theme Betheme (1/1)

Downloading update from https://marketplace.envato.com/short-dl?hash=1ba5fa0f-fa39-4a44-b822-…

Unpacking the update…

Installing the latest version…

Removing the old version of the theme…

Theme update failed.

An error occurred while updating Betheme: The update cannot be installed because we will be unable to copy some files. This is usually due to inconsistent file permissions. js/animations, js/animations/animations.min.css, js/animations/animations.min.js, js/animations/animations.css, js/animations/animations.js, js/ui, js/ui/jquery-ui-1.8.22.custom.js, js/ui/jquery.ui.widget.js, js/ui/jquery.ui.core.js, js/ui/jquery.ui.tabs.js, js/ui/jquery.ui.accordion.js, js/colorpicker, js/colorpicker/js, js/colorpicker/js/colorpicker.js, js/colorpicker/js/utils.js, js/colorpicker/js/layout.js, js/colorpicker/js/eye.js, js/colorpicker/js/jquery.js, js/colorpicker/css, js/colorpicker/css/layout.css, js/colorpicker/css/colorpicker.css, js/colorpicker/images, js/colorpicker/images/colorpicker_hsb_b.png, js/colorpicker/images/colorpicker_hsb_h.png, js/colorpicker/images/custom_rgb_g.png, js/colorpicker/images/custom_rgb_b.png, js/colorpicker/images/select2.png, js/colorpicker/images/blank.gif, js/colorpicker/images/custom_submit.png, js/colorpicker/images/colorpicker_select.gif, js/colorpicker/images/custom_hsb_s.png, js/colorpicker/images/Thumbs.db, js/colorpicker/images/colorpicker_hex.png, js/colorpicker/images/custom_hsb_b.png, js/colorpicker/images/colorpicker_rgb_r.png, js/colorpicker/images/select.png, js/colorpicker/images/colorpicker_rgb_b.png, js/colorpicker/images/custom_rgb_r.png, js/colorpicker/images/colorpicker_submit.png, js/colorpicker/images/colorpicker_background.png, js/colorpicker/images/custom_indic.gif, js/colorpicker/images/colorpicker_indic.gif, js/colorpicker/images/custom_hsb_h.png, js/colorpicker/images/custom_background.png, js/colorpicker/images/custom_hex.png, js/colorpicker/images/colorpicker_overlay.png, js/colorpicker/images/colorpicker_rgb_g.png, js/colorpicker/images/colorpicker_hsb_s.png, js/colorpicker/images/slider.png, css/ui, css/ui/images, css/ui/images/ui-bg_glass_75_dadada_1x400.png, css/ui/images/ui-bg_glass_65_ffffff_1x400.png, css/ui/images/bg_widget_header_active.png, css/ui/images/ui-icons_888888_256x240.png, css/ui/images/ui-icons_cd0a0a_256x240.png, css/ui/images/ui-icons_222222_256x240.png, css/ui/images/ui-bg_glass_55_fbf9ee_1x400.png, css/ui/images/ui-bg_glass_95_fef1ec_1x400.png, css/ui/images/ui-icons_2e83ff_256x240.png, css/ui/images/ui-bg_flat_0_aaaaaa_40x100.png, css/ui/images/ui-icons_454545_256x240.png, css/ui/images/ui-bg_glass_75_e6e6e6_1x400.png, css/ui/images/ui-bg_highlight-soft_75_cccccc_1x100.png, css/ui/images/bg_widget_header.png, css/ui/images/ui-bg_flat_75_ffffff_40x100.png, css/ui/jquery.ui.all.css, css/jplayer, css/jplayer/jplayer.blue.monday.css, css/jplayer/jplayer.blue.monday.seeking.gif, css/jplayer/jplayer.blue.monday.video.play.png, css/jplayer/jplayer.blue.monday.jpg, css/jplayer/jplayer.png, images/prettyPhoto, ............