diff --git a/Dockerfile b/Dockerfile
index 0d8aee4..7ebb090 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,5 +9,6 @@ COPY . .
 RUN go mod tidy && go build -o app .
 
 ENV TOKEN=""
+ENV TZ="Europe/Paris"
 
 CMD ./app -token $TOKEN
diff --git a/README.md b/README.md
index fe7bc74..7fa11a5 100644
--- a/README.md
+++ b/README.md
@@ -4,11 +4,11 @@ Bot for the private server Discord "Les Copaings"
 
 ## Features
 
-- Levels & XP
+- Levels & CopaingXPs
 - Roles management
 - Purge command
 
-### XP
+### CopaingXPs
 
 Functions:
 - $xp-message(x;y) = 0.025 x^{1.25}\sqrt{y}+1$ where $x$ is the length of the message and $y$ is the diversity of the 
diff --git a/commands/rank.go b/commands/rank.go
index 785b8c8..d079a84 100644
--- a/commands/rank.go
+++ b/commands/rank.go
@@ -45,7 +45,7 @@ func Rank(s *discordgo.Session, i *discordgo.InteractionCreate) {
 	xp, err := c.GetXP()
 	if err != nil {
 		utils.SendAlert(
-			"commands/rank.go - Fetching XP",
+			"commands/rank.go - Fetching xp",
 			err.Error(),
 			"discord_id",
 			c.ID,
diff --git a/main.go b/main.go
index b1f137d..a1fc1af 100644
--- a/main.go
+++ b/main.go
@@ -36,7 +36,7 @@ func main() {
 		panic(err)
 	}
 
-	err = gokord.DB.AutoMigrate(&user.Copaing{}, &config.GuildConfig{}, &config.XpRole{})
+	err = gokord.DB.AutoMigrate(&user.Copaing{}, &config.GuildConfig{}, &config.XpRole{}, &user.CopaingXP{})
 	if err != nil {
 		panic(err)
 	}
diff --git a/user/member.go b/user/member.go
index cf7c4a4..71a369b 100644
--- a/user/member.go
+++ b/user/member.go
@@ -8,16 +8,16 @@ import (
 )
 
 type Copaing struct {
-	ID        uint        `gorm:"primarykey"`
-	DiscordID string      `gorm:"not null"`
-	XP        []CopaingXP `gorm:"constraint:OnDelete:SET NULL;"`
-	GuildID   string      `gorm:"not null"`
+	ID         uint        `gorm:"primarykey"`
+	DiscordID  string      `gorm:"not null"`
+	CopaingXPs []CopaingXP `gorm:"constraint:OnDelete:SET NULL;"`
+	GuildID    string      `gorm:"not null"`
 }
 
 type CopaingXP struct {
-	ID        uint   `gorm:"primarykey"`
-	XP        uint   `gorm:"default:0"`
-	CopaingID uint   `gorm:"not null;constraint:OnDelete:CASCADE;"`
+	ID        uint `gorm:"primarykey"`
+	XP        uint `gorm:"default:0"`
+	CopaingID uint
 	GuildID   string `gorm:"not null;"`
 	CreatedAt time.Time
 }
@@ -51,7 +51,7 @@ func GetCopaing(discordID string, guildID string) *Copaing {
 func (c *Copaing) Load() error {
 	return gokord.DB.
 		Where("discord_id = ? and guild_id = ?", c.DiscordID, c.GuildID).
-		Preload("XP").
+		Preload("CopaingXPs").
 		FirstOrCreate(c).
 		Error
 }
diff --git a/user/xp.go b/user/xp.go
index c2e4d08..fca5754 100644
--- a/user/xp.go
+++ b/user/xp.go
@@ -28,13 +28,13 @@ func (c *cXP) GetXP() uint {
 func (c *Copaing) AddXP(s *discordgo.Session, m *discordgo.Member, xp uint, fn func(uint, uint)) {
 	old, err := c.GetXP()
 	pastLevel := exp.Level(old)
-	c.XP = append(c.XP, CopaingXP{CopaingID: c.ID, XP: xp, GuildID: c.GuildID})
+	c.CopaingXPs = append(c.CopaingXPs, CopaingXP{CopaingID: c.ID, XP: xp, GuildID: c.GuildID})
 	if err = c.Save(); err != nil {
 		utils.SendAlert(
 			"user/xp.go - Saving user",
 			err.Error(),
-			"exp",
-			c.XP,
+			"xp",
+			c.CopaingXPs,
 			"discord_id",
 			c.DiscordID,
 			"guild_id",
@@ -56,10 +56,16 @@ func (c *Copaing) GetXP() (uint, error) {
 
 func (c *Copaing) GetXPForDays(n uint) (uint, error) {
 	xp := uint(0)
-	y, m, d := time.Unix(time.Now().Unix()-int64(n*24*60*60), 0).Date()
+	var y, d int
+	var m time.Month
+	if gokord.Debug {
+		y, m, d = time.Unix(time.Now().Unix()-int64(n*24), 0).Date() // reduce time for debug
+	} else {
+		y, m, d = time.Unix(time.Now().Unix()-int64(n*24*60*60), 0).Date()
+	}
 	rows, err := gokord.DB.
 		Model(&CopaingXP{}).
-		Where(fmt.Sprintf("created_at >= '%d-%d-%d' and guild_id = ? and discord_id = ?", y, m, d), c.GuildID, c.DiscordID).
+		Where(fmt.Sprintf("created_at >= '%d-%d-%d' and guild_id = ? and copaing_id = ?", y, m, d), c.GuildID, c.DiscordID).
 		Rows()
 	defer rows.Close()
 	if err != nil {
@@ -69,7 +75,7 @@ func (c *Copaing) GetXPForDays(n uint) (uint, error) {
 		var cXP CopaingXP
 		err = gokord.DB.ScanRows(rows, &cXP)
 		if err != nil {
-			utils.SendAlert("user/xp.go - Scanning rows", err.Error(), "discord_id", c.DiscordID, "guild_id", c.GuildID)
+			utils.SendAlert("user/xp.go - Scanning rows", err.Error(), "copaing_id", c.DiscordID, "guild_id", c.GuildID)
 			continue
 		}
 		xp += cXP.XP
@@ -96,7 +102,7 @@ func GetBestXP(guildId string, n uint, d int) ([]CopaingAccess, error) {
 		var c Copaing
 		err = gokord.DB.ScanRows(rows, &c)
 		if err != nil {
-			utils.SendAlert("user/xp.go - Scanning rows", err.Error(), "discord_id", c.DiscordID, "guild_id", guildId)
+			utils.SendAlert("user/xp.go - Scanning rows", err.Error(), "guild_id", guildId)
 			continue
 		}
 		wg.Add(1)