C B

Short Pixel Version 4.18.0
WP Versione 5.4.1
PHP Version 7.3 or 7.2 (error in any case)

Esmi thanks for checking but if a try to call the page with a remote http checker like https://web-sniffer.net/ it returns a 200 OK (if i don’t activate the permalinks)

with permalinks activated I obtain a 302 (moved temporarly) to the permalink:
https://www.davolimultimedia.it/dm/juniordancerscluj.html

can you check again with FF and IE what’s the beahviour in your case?

Thanks
Cino