PHP : require_once :failed to open stream: no such file or directory

PHP : require_once :failed to open stream: no such file or directory
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I promised to reveal a secret feature to you, and now it's time to share it.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Then, type the letters 'awesome' on your keyboard as the next step.
It will change your youtube progress bar into a flashing rainbow.

A quick introduction about me,
Greetings, my name is Delphi.
Allow me to support you in answering your questions.
PHP : require_once :failed to open stream: no such file or directory
If you have a more detailed question, feel free to comment or chat with me to let me know.
Your thoughts and contributions are welcome, so please leave a comment below if you have an answer or insights to the answer.
Your answer will be acknowledged and appreciated, and I will 'heart' it as a sign of gratitude.
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