Avast is blocking my website

How can I make that Avast doesn’t block my website? (ugu.cl). It says that it has phishing problems, but with other anti-viruses we don’t have that problem. Can I ask to Avast support to remove that alert? Because I can enter now adding the domain to “exceptions” but I want that everyone can access to the website without problems.

Thank you in advance.

Report a false positive (select file or website)
https://www.avast.com/false-positive-file-form.php

Avast isn’t alone in blocking this - https://www.virustotal.com/gui/url/212621537550871c7c98206e391e9fd1ad62a3d77b7c391552cf77aefef7b102/detection - check the Links as there are external links which could also have an impact.

This check has many security(and other) hints - https://webhint.io/scanner/07c5532c-80bf-4805-a6ec-098b84a7b961

This check reports - Critical Security Risk, though the scan fails due to time out - https://sitecheck.sucuri.net/results/https/ugu.cl

Out of date software, jQuery reported here - https://sitecheck.sucuri.net/results/https/ugu.cl