Jquery error in dashboard

Hello,

I have tried to rectify this Javascript error I’m receiving to no avail. Have removed all other plugins, changed themes, edited htaccess file, edited php.ini, changed file permissions and none has helped so far.

Warning: If you can still read these words after the page finishes loading, then there is a JavaScript or jQuery problem in the site.

Here are the errors I’m getting as per Google chrome console:

GET https://www.sitename.com/wp-content/plugins/updraftplus/includes/tether/tether.min.js?ver=1 net::ERR_ABORTED 403

GET https://www.sitename.com/wp-content/plugins/updraftplus/includes/blockui/jquery.blockUI-1-16-61.min.js?ver=2.71.0 net::ERR_ABORTED 403

GET https://www.sitename.com/wp-content/plugins/updraftplus/includes/handlebars/handlebars.min.js?ver=4.1.2 net::ERR_ABORTED 403

GET https://www.sitename.com/wp-content/plugins/updraftplus/includes/jquery.serializeJSON/jquery.serializejson.min.js?ver=3.2.0 net::ERR_ABORTED 403

GET https://www.sitename.com/wp-content/plugins/updraftplus/includes/jstree/jstree.min.js?ver=3.3.12-rc.0 net::ERR_ABORTED 403

GET https://www.sitename.com/wp-content/plugins/updraftplus/includes/jquery-ui.dialog.extended/jquery-ui.dialog.extended-1-16-61.min.js?ver=1.0.4 net::ERR_ABORTED 403

GET https://www.sitename.com/wp-content/plugins/updraftplus/includes/labelauty/jquery-labelauty-1-16-61.min.js?ver=1.16.61 net::ERR_ABORTED 403

GET https://www.sitename.com/wp-content/plugins/updraftplus/css/updraftplus-notices-1-16-61.min.css?ver=1.16.61 net::ERR_ABORTED 403

load-scripts.php?c=0&load[chunk_0]=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-mouse,jquery-ui-resizable,jquery-ui-draggable,jquery-ui-controlgroup,j&load[chunk_1]=query-ui-checkboxradio,jquery-ui-button,jquery-ui-dialog,jquery-ui-accordion,moxiejs,plupload&ver=5.8.1:5 JQMIGRATE: Migrate is installed, version 3.3.2

Any help would be greatly appreciated.