Spacious critical error WordPress

Website displays no content to viewers except for the following message. A critical error has occurred on this website. Bluehost tech support reported that this error is due to a problem with the spacious theme and recommended contacting Themegrill for assistance fixing the problem. Bluehost has provided the following info about the current error code applicable to the problem. What can be done to remedy the problem?

[14-Jun-2021 14:02:50 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function spacious_header_info_text() in /home4/jzlwpmmy/public_html/wp-content/themes/spacious/header.php:74
Stack trace:
#0 /home4/jzlwpmmy/public_html/wp-includes/template.php(730): require_once()
#1 /home4/jzlwpmmy/public_html/wp-includes/template.php(676): load_template('/home4/jzlwpmmy...', true, Array)
#2 /home4/jzlwpmmy/public_html/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#3 /home4/jzlwpmmy/public_html/wp-content/themes/spacious/page.php(9): get_header()
#4 /home4/jzlwpmmy/public_html/wp-includes/template-loader.php(106): include('/home4/jzlwpmmy...')
#5 /home4/jzlwpmmy/public_html/wp-blog-header.php(19): require_once('/home4/jzlwpmmy...')
#6 /home4/jzlwpmmy/public_html/index.php(17): require('/home4/jzlwpmmy...')
#7 {main}
 thrown in /home4/jzlwpmmy/public_html/wp-content/themes/spacious/header.php on line 74

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