please help me with this error

package main



import (

	_ "github.com/mattn/go-sqlite3"

	"database/sql"

	"errors"

)



var db *sql.DB



func DBinit() error {

	db, err := sql.Open("sqlite3", "./database.sqlite")

	if err != nil {

		return err

	}

	_, err = db.Exec("CREATE TABLE IF NOT EXISTS guides (id INTEGER PRIMARY KEY AUTOINCREMENT, title TEXT UNIQUE, content TEXT)")

	return err

}

func DBinsert(title, content string) error {

	_, err := db.Exec("INSERT INTO guides (title, content) VALUES (?, ?)", title, content)

	return err

}

func DBget(title string) (string, error) {

	rows, err := db.Query("SELECT content FROM guides WHERE title = ?", title)

	if err != nil {

		return "", err

	}

	if rows.Next() {

		var content string

		err = rows.Scan(&content)

		if err != nil {

			return "", err

		}

		return content, nil

	}

	return "", errors.New("No guide found")

}

func DBclose() {db.Close()}

package main



import (

	"log"

	"fmt"

	"net/http"

	"net/url"

)



func main() {

	err := DBinit()

	if err != nil {log.Fatal(err)}

	defer DBclose()

	http.HandleFunc("/create", create)

	http.HandleFunc("/edit/", edit)

	http.HandleFunc("/guide/", guide)

	http.HandleFunc("/", home)

	log.Fatal(http.ListenAndServe(":8080", nil))

	log.Println("Running stuyguides")

}

func guide(w http.ResponseWriter, r *http.Request) {

	path := r.URL.Path[len("/guide/"):]

	title, content := DBget(path)

	fmt.Fprintf(w, "You requested the guide: %s\nTitle: %s\nContent: %s\n", path, title, content)

}

func edit(w http.ResponseWriter, r *http.Request) {

	path := r.URL.Path[len("/edit/"):]

	fmt.Fprintf(w, "You are going to edit the guide: %s", path)

}

func create(w http.ResponseWriter, r *http.Request) {

	if r.URL.Path != "/create" {

		http.NotFound(w, r)

		return

	}

	switch r.Method {

	case "GET":

		fmt.Fprintf(w, "You are creating a guide")

	case "POST":

		if r.FormValue("content") == "" || r.FormValue("title") == "" {

			http.Error(w, "Either the title or the content are missing", http.StatusBadRequest)

			return

		}

		/*err := DBinsert(r.FormValue("content"), r.FormValue("title"))

		if err != nil {

			http.Error(w, "Internal Server Error", http.StatusInternalServerError)

			log.Println(err)

			return

		}*/

		http.Redirect(w, r, "/guide/" + url.PathEscape(r.FormValue("title")), http.StatusFound)

	default:

		http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)

	}

}

func home(w http.ResponseWriter, r *http.Request) {

	switch r.URL.Path {

	case "/":

		fmt.Fprint(w, "Welcome to the stuygides website")

	case "/about":

		fmt.Fprint(w, "Welcome to the about page!")

	default:

		http.NotFound(w, r)

	}

}

can't make heads or tails of it... based off of the error the problem probably came from the SQL query but I have no idea what to do about it.



or even what the actual problem is