Security Notice: Tampered Files

Hi guys, I got an email this morning saying that I had a security notice due to tampered files. Is this serious?

This notification was generated by the FreePBX Server identified as
’******’.
You may change this designation in the module admin page, by clicking on the
alert icon in the top right hand corner of the page.

SECURITY NOTICE:

You have 4 tampered files:
Module: “Sound Languages”, File:
"/var/www/html/admin/modules/soundlang/vendor/splitbrain/php-archive/tests/
tar/longpath-gnu.tgz
missing"
Module: “Sound Languages”, File:
"/var/www/html/admin/modules/soundlang/vendor/splitbrain/php-archive/tests/
tar/longpath-ustar.tgz
missing"
Module: “Sound Languages”, File:
"/var/www/html/admin/modules/soundlang/vendor/splitbrain/php-archive/tests/
tar/tarbomb.tgz
missing"
Module: “Sound Languages”, File:
"/var/www/html/admin/modules/soundlang/vendor/splitbrain/php-archive/tests/
tar/test.tgz
missing"