Fix: send correct error number

internal/models/bankers.go

@@ -119,12 +119,12 @@ func (d *DataHandler) postBankerAdmin(w http.ResponseWriter, r *http.Request, id
 	// check userID is not already present in DB
 	var client UserClient
 	if err := d.db.Where(reqUserID, o.UserID).First(&client).Error; err == nil {
-		http.Error(w, "UserID is already bind to a Client", http.StatusNotFound)
+		http.Error(w, "UserID is already bind to a Client", http.StatusInternalServerError)
 		return
 	}
 	var banker UserBanker
 	if err := d.db.Where(reqUserID, o.UserID).First(&banker).Error; err == nil {
-		http.Error(w, "UserID is already bind to a Banker", http.StatusNotFound)
+		http.Error(w, "UserID is already bind to a Banker", http.StatusInternalServerError)
 		return
 	}
 	d.db.Create(&o)

internal/models/clients.go

@@ -139,12 +139,12 @@ func (d *DataHandler) postClientAdmin(w http.ResponseWriter, r *http.Request, id
 	// check userID is not already present in DB
 	var client UserClient
 	if err := d.db.Where(reqUserID, o.UserID).First(&client).Error; err == nil {
-		http.Error(w, "UserID is already bind to a Client", http.StatusNotFound)
+		http.Error(w, "UserID is already bind to a Client", http.StatusInternalServerError)
 		return
 	}
 	var banker UserBanker
 	if err := d.db.Where(reqUserID, o.UserID).First(&banker).Error; err == nil {
-		http.Error(w, "UserID is already bind to a Banker", http.StatusNotFound)
+		http.Error(w, "UserID is already bind to a Banker", http.StatusInternalServerError)
 		return
 	}
 	d.db.Create(&o)