Fatal error using Custom login URL

Hi,

Thanks for a great plug in.

I thought I’d had an new issue but in fact I think it’s been going on for some time. The new new WordPress self-monitoring feature has highlighted it for me.

I use the custom login feature which works perfectly. On the dashboard section where it indicates what 404 page to show, I have “Use the 404 from the current theme”.

My current theme is Themeco Pro (similar to X-theme) and that has a Custom 404 page plug in. When I enter a non-existing page, the custom 404 kicks in just fine – so that IS working as expected. But when I try to access the (invalid) /wp-login.php URL, I get the fatal error. The error and stack trace is shown below.

When I switch to “use simple 404”, that works ok.

Any suggestions?

Thanks
S.

[16-Jun-2019 22:58:24 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function x_get_view() in /var/sites/s/{my-site}/public_html/wp-content/themes/pro/404.php:15
Stack trace:
#0 /var/sites/s/{my-site}/public_html/wp-content/plugins/wp-cerber/cerber-load.php(3489): include()
#1 /var/sites/s/{my-site}/public_html/wp-content/plugins/wp-cerber/cerber-load.php(1790): cerber_404_page()
#2 /var/sites/s/{my-site}/public_html/wp-content/plugins/wp-cerber/cerber-load.php(1771): cerber_access_control()
#3 /var/sites/s/{my-site}/public_html/wp-includes/class-wp-hook.php(286): {closure}('')
#4 /var/sites/s/{my-site}/public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)
#5 /var/sites/s/{my-site}/public_html/wp-includes/plugin.php(465): WP_Hook->do_action(Array)
#6 /var/sites/s/{my-site}/public_html/wp-settings.php(525): do_action('init')
#7 /var/sites/s/{my-site}/public_html/wp-config.php(97): require_once('/var/sites/s/s in /var/sites/s/{my-site}/public_html/wp-content/themes/pro/404.php on line 15