Warning: spl_autoload() [function.spl-autoload]

Hello ?? I’m trying this plugin on a hosting environment and it displays this on top of the page:

Warning: spl_autoload() [function.spl-autoload]: Unable to access k35r0vc.class.php in /home/stopecom/public_html/wp-content/plugins/term-menu-order/term-menu-order.php on line 42

Warning: spl_autoload() [function.spl-autoload]: Unable to access k35r0vc.class.php in /home/stopecom/public_html/wp-content/plugins/term-menu-order/term-menu-order.php on line 42

Warning: spl_autoload() [function.spl-autoload]: Unable to access k35r0vc.class.php in /home/stopecom/public_html/wp-content/plugins/term-menu-order/term-menu-order.php on line 42

Warning: spl_autoload() [function.spl-autoload]: Unable to access k35r0vc.class.php in /home/stopecom/public_html/wp-content/plugins/term-menu-order/term-menu-order.php on line 42

Warning: spl_autoload() [function.spl-autoload]: Unable to access videopress.class.php in /home/stopecom/public_html/wp-content/plugins/term-menu-order/term-menu-order.php on line 42

Warning: spl_autoload() [function.spl-autoload]: Unable to access polldaddyshortcode.class.php in /home/stopecom/public_html/wp-content/plugins/term-menu-order/term-menu-order.php on line 42

Warning: spl_autoload() [function.spl-autoload]: Unable to access k35r0vc.class.php in /home/stopecom/public_html/wp-content/plugins/term-menu-order/term-menu-order.php on line 42

Warning: spl_autoload() [function.spl-autoload]: Unable to access k35r0vc.class.php in /home/stopecom/public_html/wp-content/plugins/term-menu-order/term-menu-order.php on line 42

I can’t open wp-admin too because of the same error and also this error.

Warning: Cannot modify header information - headers already sent by (output started at /home/stopecom/public_html/wp-content/plugins/term-menu-order/term-menu-order.php:42) in /home/stopecom/public_html/wp-login.php on line 362

Warning: Cannot modify header information - headers already sent by (output started at /home/stopecom/public_html/wp-content/plugins/term-menu-order/term-menu-order.php:42) in /home/stopecom/public_html/wp-login.php on line 374

Could any help be provided? Thanks!
https://www.ads-software.com/extend/plugins/term-menu-order/