fixed premission problem after making migrations executed by go

Backend/main.go

@@ -44,6 +44,13 @@ func main() {
 	models.DB, err = OpenDatabase()
 	if err != nil {
 		slog.Error("Error while opening the database", "Error", err)
+		return
+	}
+
+	err = Migrate()
+	if err != nil {
+		slog.Error("Failed to migrate the database to newest version", "Error", err)
+		return
 	}
 
 	fs := http.FileServer(http.Dir("./static"))