Error A plugin has prevented updates by disabling wp_version_check()

Hello,

i have created hello elementor child theme and trying to add a code intof unctions.php file on child theme.whhile i try to update file, i got a error

Unable to communicate back with site to check for fatal errors, so the PHP change was reverted. You will need to upload your PHP file change by some other means, such as by using SFTP.

so i found solution on that , i installed health check plugin when i checked health of my website. i got two critical error or issue.one of them is following

Error A plugin has prevented updates by disabling wp_version_check()

for that i am trying to find solution but didn’t get any solution
kindly asist

The page I need help with: [log in to see the link]