Avast problem with my own websitw

Avast problem with my site I do not know what the reason everything were good previously,
the site may has been unblocked and may stay vulnerable because of outdated server nginx software any solution
https://www.isalna.com/
https://www.isalna.com/tag/صحة

https://sitecheck.sucuri.net/results/https/www.isalna.com
https://www.virustotal.com/gui/url/4a696aace17b74f158367cff4c860eabda955dd92fe40cb65571e48f0574503a/detection

You can report a suspected FP (File/Website) here: https://www.avast.com/false-positive-file-form.php

See: Results from scanning URL: hxtps://www.isalna.com/8697358/%D9%87%D9%84-%D8%A7%D9%84%D8%AF%D9%8A%D9%86-%D8%A8%D8%A7%D9%84%D9%88%D8%B1%D8%A7%D8%AB%D8%A9
Number of sources found: 51
Number of sinks found: 119
Re: GET /8697358/%D9%87%D9%84-%D8%A7%D9%84%D8%AF%D9%8A%D9%86-%D8%A8%D8%A7%D9%84%D9%88%D8%B1%D8%A7%D8%AB%D8%A9 HTTP/1.0
Host: wXw.isalna.com:443 Qatar txt

Wait for a final verdict after reporting this as a FP.

polonus (volunteer 3rd party cold recon website security analyst and website error-hunter)