ogorod

Ok, backup is done, but ANOTHER problem popped up!

BMI-CN6SciG1-81054

And I still not understand where to input my purchase code.
Do I need create a staging server 1st from the plugin?

You need to hire a usability specialist ASAP.

cache-control' => 's-maxage=31536000, max-age=60',
    'x-wp-cf-super-cache' => 'cache',
    'x-wp-cf-super-cache-active' => '1',
    'x-wp-cf-super-cache-cache-control' => 's-maxage=31536000, max-age=60',
    'x-wp-cf-super-cache-cookies-bypass' => 'swfpc-feature-not-enabled',
    'vary' => 'Accept-Encoding',
    'cf-cache-status' => 'DYNAMIC',
    'report-to' => '{"endpoints":[{"url":"https:\\/\\/a.nel.cloudflare.com\\/report\\/v3?s=8mzq2GXyAckJ3OVUwCRzEngJU3rzr%2BthiICtDgudD5e%2F9f7FQM3G0kBzZrNR3gxRbcbgD6DLQpEHk58JdfD2GxJ5lmF5AaNiKPpIf%2FO9vKUukr1SmTD5Vg2%2BwVfU4DTR1lkdNrTE"}],"group":"cf-nel","max_age":604800}',
    'nel' => '{"success_fraction":0,"report_to":"cf-nel","max_age":604800}',
    'strict-transport-security' => 'max-age=15552000; includeSubDomains; preload',
    'x-content-type-options' => 'nosniff',
    'server' => 'cloudflare',
    'cf-ray' => '801490564b1f3e31-SIN',
    'content-encoding' => 'br',
    'alt-svc' => 'h3=":443"; ma=86400'