Report from query gives 404 The requested URL was not found on this server

[Kicosta]

Everithing works fine except xml report from query that return a "404 The requested URL was not found on this server."
The report from table is working and all dir are writable.
Strainge issue is that the name of the reports ares not written in the list, in fact all report are without names (??) pls see attached screenshot.
Someone already face this problem?

vfront .99.5
php 7.3

Any help is very appreciated