Please help me with this bug: Fatal error: Call to a member function query() on a non Programming Web Development by Nguafack … public function numRowsFromCache( $cache_id ) { return $this->queryCache[$cache_id]->num_rows; } /** * Get the rows from … public function resultsFromCache( $cache_id ) { return $this->queryCache[$cache_id]->fetch_array(MYSQLI_ASSOC); } /** * Store some data in…