Error 500

i cant make a duplication of my website and i see this:

” Analizar el error
?Por favor inténtalo de nuevo!
Estado del servidor: 500 -Internal Server Error

Mensaje de error:
El sitio está experimentando dificultades técnicas.timeout[PHP ERR][WARN] MSG:set_time_limit() has been disabled for security reasons [CODE:2|FILE:/home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-content/plugins/duplicator/ctrls/ctrl.package.php|LINE:46]
#0 DUP_Handler::getMessage(2, set_time_limit() has been disabled for security reasons, /home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-content/plugins/duplicator/ctrls/ctrl.package.php, 46) called at [/home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-content/plugins/duplicator/classes/class.logging.php:409]
#1 DUP_Handler::error(2, set_time_limit() has been disabled for security reasons, /home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-content/plugins/duplicator/ctrls/ctrl.package.php, 46, Array ())
#2 set_time_limit(0) called at [/home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-content/plugins/duplicator/ctrls/ctrl.package.php:46]
#3 duplicator_package_scan() called at [/home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-includes/class-wp-hook.php:286]
#4 WP_Hook->apply_filters(, Array ([0] => )) called at [/home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-includes/class-wp-hook.php:310]
#5 WP_Hook->do_action(Array ([0] => )) called at [/home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-includes/plugin.php:465]
#6 do_action(wp_ajax_duplicator_package_scan) called at [/home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-admin/admin-ajax.php:173]

[PHP ERR][FATAL] MSG:Maximum execution time of 20 seconds exceeded [CODE:1|FILE:/home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-content/plugins/duplicator/classes/package/class.pack.archive.php|LINE:492]
#0 DUP_Handler::getMessage(1, Maximum execution time of 20 seconds exceeded, /home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-content/plugins/duplicator/classes/package/class.pack.archive.php, 492) called at [/home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-content/plugins/duplicator/classes/class.logging.php:409]
#1 DUP_Handler::error(1, Maximum execution time of 20 seconds exceeded, /home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-content/plugins/duplicator/classes/package/class.pack.archive.php, 492) called at [/home/vol12_1/byethost9.com/b9_24343087/htdocs/wp-content/plugins/duplicator/classes/class.logging.php:528]
#2 DUP_Handler::shutdown()”

what can i do now?

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