Safe site flagged as phishing

A site I regularly use for work has been flagged as a phishing site. This is only happening on one of my devices and is totally fine on my phone and laptop. It doesn’t appear to be affecting any other users either.

I updated Avast to see if that solved it but to no avail. I’ve added it to the exceptions list which allows me to access it but I get the phishing warning as I navigate the page. I’m pretty sure it’s safe as no one else is having issues.

Any ideas? Thanks

Update: I’ve removed the Avast browser extension and that has stopped the constant warnings.

Still wondering why it’s being flagged as a phishing site though.

Here’s the link: https://samschool.online/

Hi @Tim92, can you please report this one as a potential false positive? Please use the following webform: https://www.avast.com/false-positive-file-form.php

My friend checked two sites here and the results were not good: he reports that the site Low Security RiskPotentially Suspicious Content Detected!
https://quttera.com/detailed_report/samschool.online
https://www.virustotal.com/gui/url/3a7139b5b5545c13862094e2c47e8a78410cf4ff948de220573d21f799ef11dd