Error on the path to my file

Hello everyone! I have a little problem that has been blocking me for a while with my cpanel. Voila, I have an anti -roid application that requires a connection to the server and for that, I wrote a php script that I placed in the public_html file. My script works very well and I manage to send the data of my Android application to my database So I created a folder in public_html in which I placed my php script, and since then it no longer works. Can not add content to my database yet I have correctly specified the path to my file in my application. -http: //www.mydomainname.com/myfile.php is working properly. -http: //www.mydomainname.com/mydirectory/myfile.php Does not work. Help me solve this, please.