jam

Thanks Podz. It makes sense.

Unfortunately, I and my provider are not using Cpanel. However, your description was good enough to understand the situation. I researched little. Now, I understood it was a mistake administrator forgot to give me grants when he made my database.

I’m asking my ISP to give me grants now. Thank you so much.

It was a configuration error of MySQL. No error on WordPress. However, I’m glad if the error message was little more kind like you Podz. 😉 Thanks.