Thank you so much for contacting our support center.
Could you please provide us some screenshot what code do you mean? Also, please, check with default WordPress theme to see if it is our theme’s code or not.
We have looked at your site and we can’t find unsafe domains. Could you please clarify with Google Adwords Supports which domains do they consider not secure.
We re-checked your site and found no errors on our part. You should contact the AdWords support team via phone (see number and support timing on below link). Ask them to send you some reference pages on which they found the infected link so that you can investigate further on that specific pages. Usually, support team send an email with reference pages to help the customer to solve the issue. https://support.google.com/google-ads/answer/7218750