Hello, can you create a new user for your database instead of root? Like admin?

Here’s the updated guide: Raspberry Pi: Install Apache + MySQL + PHP (LAMP Server)
https://randomnerdtutorials.com/raspberry-pi-apache-mysql-php-lamp-server/

Run this command in your terminal window:

sudo mysql --user=root --password
create user admin@localhost identified by 'your_password';
grant all privileges on *.* to admin@localhost;
FLUSH PRIVILEGES;
exit;

Those commands will create a new user with name (admin) and password (your_password).
Let me know if this solves your problem! Regards,
Rui

Thank you, Mr Santos. Able to login using admin and mypassword.

How do I set up raspberrypi access using WiFi instead of Lan network? Thank you in advance for your advise.

I managed to setup wireless startup using raspi-config. Thank you.

Exactly, that’s what I was going to suggest! Thanks for letting me know it worked.