Child Theme critical problem

I am using an Enigma Child Theme and my site received a WP critical error after the parent theme updated to version 7.1.3.
The error is:

Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-content/plugins/js_composer/include/classes/core/class-vc-mapper.php on line 111 Fatal error: Uncaught Error: Call to undefined function weblizar_get_options() in /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-content/themes/enigma-child/header.php:14 Stack trace: #0 /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-includes/template.php(730): require_once() #1 /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-includes/template.php(676): load_template() #2 /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-includes/general-template.php(48): locate_template() #3 /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-content/themes/enigma/page.php(1): get_header() #4 /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-includes/template.php(732): require(‘/mnt/web420/c2/…’) #5 /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-includes/template.php(676): load_template() #6 /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-includes/general-template.php(204): locate_template() #7 /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-content/themes/enigma/front-page.php(15): get_template_part() #8 /mnt/web420/c2/88 in /mnt/web420/c2/88/59439088/htdocs/WordPress_01/wp-content/themes/enigma-child/header.php on line 14

I haven’t any problem never, but now I can’t doing anything. I’ve tried to install enigma.6.0.5 version, and I have the same problem.

Thank you and best regards.

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