I dont want to name it index.html

[ChrisPAR]

Your website works fine. Unfortunately, it seems like it has been flagged by Google Safe Browsing.
The advice in these posts should help:

The site is misleading

It appears that your site has been flagged by Google Safe Browsing. If it is a false positive, you can report the error to Google from here: https://safebrowsing.google.com/safebrowsing/report_error/?hl=en The advice shared in this thread also applies:

My website for flagged in Google safe browsing

You can add you website to Google Search Consle at search.google.com/search-console. This should help verify the legitimacy of your domain and hopefully Google will take away the security notice. However, the Transparency Report says that your website tries to trick visitors into sharing personal info or download malicious software, so your success rate may be low. Here’s the report: Google Transparency Report