Broken in latest WordPress

Got errors:

Warning: fopen(/usr/local/nginx/html/wp-content/plugins/wp-handy-lightbox/welcome.txt): failed to open stream: No such file or directory in /home/**mysite**/public/wp-content/plugins/wp-handy-lightbox/wp-jquery-lightbox.php on line 70 Warning: filesize(): stat failed for /usr/local/nginx/html/wp-content/plugins/wp-handy-lightbox/welcome.txt in /home/**mysite**/public/wp-content/plugins/wp-handy-lightbox/wp-jquery-lightbox.php on line 71 Warning: fread() expects parameter 1 to be resource, boolean given in /home/**mysite**/public/wp-content/plugins/wp-handy-lightbox/wp-jquery-lightbox.php on line 71 Warning: fclose() expects parameter 1 to be resource, boolean given in /home/**mysite**/public/wp-content/plugins/wp-handy-lightbox/wp-jquery-lightbox.php on line 72 Warning: fopen(/usr/local/nginx/html/wp-content/plugins/wp-handy-lightbox/welcome.txt): failed to open stream: No such file or directory in /home/**mysite**/public/wp-content/plugins/wp-handy-lightbox/wp-jquery-lightbox.php on line 78 Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/**mysite**/public/wp-content/plugins/wp-handy-lightbox/wp-jquery-lightbox.php on line 79 Warning: fclose() expects parameter 1 to be resource, boolean given in /home/**mysite**/public/wp-content/plugins/wp-handy-lightbox/wp-jquery-lightbox.php on line 80