fix default file reader bug

server/data/sqlite.go

@@ -1,11 +1,23 @@
 package data
 
 import (
+	"fmt"
+	"os"
+
 	"github.com/jmoiron/sqlx"
 	_ "github.com/mattn/go-sqlite3"
 )
 
 func NewSqliteDatabase() *sqlx.DB {
+
+	// ensure that database exists
+	info, err := os.Stat("./data/database.db")
+	if os.IsNotExist(err) {
+		fmt.Println("No database found. Check path: ", err)
+	} else {
+		fmt.Println("Database existed. ", info)
+	}
+
 	db := sqlx.MustConnect("sqlite3", "./data/database.db")
 	return db
 }