Question: Please explain how to fix this error on row 28 thank you, Fatal error: Uncaught Error: Call to a member function fetch assoc() on boolean

Please explain how to fix this error on row 28 thankyou, Fatal error: Uncaught Error: Call to a member function fetch assoc()

Please explain how to fix this error on row 28 thank you,

Fatal error: Uncaught Error: Call to a member function fetch assoc() on boolean in

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