diff --git a/auth/auth.go b/auth/auth.go
index f6c1d83..9775dc8 100644
--- a/auth/auth.go
+++ b/auth/auth.go
@@ -116,6 +116,11 @@ func (con AuthApi) signUp(ctx *gin.Context) {
 		return
 	}
 
+	err = con.tokenHandler.DeleteInviteToken(ctx, token.Token)
+	if err != nil {
+		log.Printf("Failed to delete token %s", err)
+	}
+
 	con.signIn(ctx)
 }
 
diff --git a/auth/utils.go b/auth/utils.go
index fad298d..4bdec54 100644
--- a/auth/utils.go
+++ b/auth/utils.go
@@ -13,7 +13,7 @@ func AuthorizedTo(requiredPermissions models.Permission) gin.HandlerFunc {
 	return func(ctx *gin.Context) {
 		claimsPointer, exists := ctx.Get("claims")
 		if !exists {
-			ctx.AbortWithError(500, fmt.Errorf("Did not call LoggedIn first"))
+			ctx.AbortWithError(500, fmt.Errorf("did not call LoggedIn first"))
 			return
 		}
 
@@ -41,6 +41,5 @@ func AuthorizationEnforcer() gin.HandlerFunc {
 		if !authorized.(bool) {
 			ctx.AbortWithStatus(403)
 		}
-
 	}
 }
diff --git a/dbhandler/mongo/user_pass_authentication.go b/dbhandler/mongo/user_pass_authentication.go
index 55eced6..a265137 100644
--- a/dbhandler/mongo/user_pass_authentication.go
+++ b/dbhandler/mongo/user_pass_authentication.go
@@ -170,6 +170,11 @@ func (i *InviteTokenDbHandler) SaveInviteToken(ctx context.Context, email string
 	return token, nil
 }
 
+func (i *InviteTokenDbHandler) DeleteInviteToken(ctx context.Context, token string) error {
+	_, err := i.collection.DeleteOne(ctx, bson.M{"token": token})
+	return err
+}
+
 func (i *InviteTokenDbHandler) GetInviteToken(ctx context.Context, token string) (*dbhandler.InviteToken, error) {
 	var inviteToken InviteToken
 	err := i.collection.FindOne(ctx, bson.M{"token": token}).Decode(&inviteToken)
diff --git a/dbhandler/user_pass_auth.go b/dbhandler/user_pass_auth.go
index 74edd7e..01c150b 100644
--- a/dbhandler/user_pass_auth.go
+++ b/dbhandler/user_pass_auth.go
@@ -40,4 +40,5 @@ type UserPassAuthanticationDbHandler interface {
 type InviteTokenDbHandler interface {
 	SaveInviteToken(ctx context.Context, email string, permissions models.Permission) (string, error)
 	GetInviteToken(ctx context.Context, token string) (*InviteToken, error)
+	DeleteInviteToken(ctx context.Context, token string) error
 }
diff --git a/go.mod b/go.mod
index 4df1ee2..88a0379 100644
--- a/go.mod
+++ b/go.mod
@@ -60,6 +60,8 @@ require (
 	go.opentelemetry.io/otel/metric v1.35.0 // indirect
 	go.opentelemetry.io/otel/sdk v1.35.0 // indirect
 	go.opentelemetry.io/otel/trace v1.35.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
 	golang.org/x/oauth2 v0.28.0 // indirect
 	golang.org/x/sync v0.11.0 // indirect
 	golang.org/x/time v0.11.0 // indirect
diff --git a/go.sum b/go.sum
index 446da3c..ef1519e 100644
--- a/go.sum
+++ b/go.sum
@@ -196,6 +196,10 @@ go.opentelemetry.io/otel/trace v1.35.0 h1:dPpEfJu1sDIqruz7BHFG3c7528f6ddfSWfFDVt
 go.opentelemetry.io/otel/trace v1.35.0/go.mod h1:WUk7DtFp1Aw2MkvqGdwiXYDZZNvA/1J8o6xRXLrIkyc=
 go.opentelemetry.io/proto/otlp v1.5.0 h1:xJvq7gMzB31/d406fB8U5CBdyQGw4P399D1aQWU/3i4=
 go.opentelemetry.io/proto/otlp v1.5.0/go.mod h1:keN8WnHxOy8PG0rQZjJJ5A2ebUoafqWp0eVQ4yIXvJ4=
+go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
+go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
+go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
+go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/arch v0.8.0 h1:3wRIsP3pM4yUptoR96otTUOXI367OS0+c9eeRi9doIc=
 golang.org/x/arch v0.8.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
diff --git a/logger/logger.go b/logger/logger.go
new file mode 100644
index 0000000..5d2579a
--- /dev/null
+++ b/logger/logger.go
@@ -0,0 +1,26 @@
+package logger
+
+import (
+	"os"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+var Logger *zap.Logger
+
+func init() {
+	var cfg zap.Config
+	if os.Getenv("DEBUG") == "true" {
+		cfg = zap.NewDevelopmentConfig()
+	} else {
+		cfg = zap.NewProductionConfig()
+	}
+	cfg.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
+	var err error
+	Logger, err = cfg.Build()
+	if err != nil {
+		panic(err)
+	}
+	defer Logger.Sync() // flushes buffer, if any
+}
diff --git a/servers/servers.go b/servers/servers.go
index bf797ce..6a5f8eb 100644
--- a/servers/servers.go
+++ b/servers/servers.go
@@ -2,9 +2,7 @@ package servers
 
 import (
 	"encoding/json"
-	"errors"
 	"fmt"
-	"log"
 	"net/http"
 	"strconv"
 	"strings"
@@ -14,9 +12,11 @@ import (
 	"git.acooldomain.co/server-manager/backend/dbhandler"
 	"git.acooldomain.co/server-manager/backend/factories"
 	instancemanager "git.acooldomain.co/server-manager/backend/instancemanager"
+	"git.acooldomain.co/server-manager/backend/logger"
 	"git.acooldomain.co/server-manager/backend/models"
 	"github.com/gin-gonic/gin"
 	"github.com/gorilla/websocket"
+	"go.uber.org/zap"
 )
 
 var upgrader = websocket.Upgrader{
@@ -193,16 +193,12 @@ func (con ServersApi) GetServers(ctx *gin.Context) {
 		server := serverConfigsMap[instanceServer.Id]
 
 		var image ImageInfo
-		log.Printf("server=%#v\t|\tinstanceServer=%#v", server, instanceServer)
-
 		if instanceServer.Running {
 			image = ImageInfo{
 				Name:    instanceServer.RunningImage.Registry,
 				Version: instanceServer.RunningImage.Tag,
 			}
 		} else {
-			log.Printf("serverImage:%#v", server.Image)
-
 			image = ImageInfo{
 				Name:    server.Image.Registry,
 				Version: server.Image.Tag,
@@ -246,6 +242,7 @@ func (con ServersApi) DeleteServer(ctx *gin.Context) {
 
 	err = con.ServersDbHandler.DeleteServer(ctx, serverId)
 	if err != nil {
+		logger.Logger.Error("Failed to delete server", zap.String("ServerId", serverId), zap.Error(err))
 		ctx.AbortWithError(501, err)
 		return
 	}
@@ -262,13 +259,15 @@ func (con ServersApi) RunCommand(ctx *gin.Context) {
 	err := json.NewDecoder(ctx.Request.Body).Decode(&request)
 	if err != nil {
 		ctx.AbortWithError(500, err)
+		return
 	}
 
 	serverId := ctx.Param("server_id")
-	log.Print("Writing command \"", request.Command, "\"")
+	logger.Logger.Info("Writing command", zap.String("ServerId", serverId), zap.String("Command", request.Command))
 
 	consolePointer, err := con.InstanceManager.InteractiveTerminal(ctx, serverId)
 	if err != nil {
+		logger.Logger.Error("Failed getting terminal", zap.String("ServerId", serverId), zap.String("Command", request.Command), zap.Error(err))
 		ctx.AbortWithError(500, err)
 		return
 	}
@@ -278,10 +277,12 @@ func (con ServersApi) RunCommand(ctx *gin.Context) {
 
 	_, err = console.Conn.Write([]byte(request.Command + "\n"))
 	if err != nil {
+		logger.Logger.Error("Failed writing command", zap.String("ServerId", serverId), zap.String("Command", request.Command), zap.Error(err))
 		ctx.AbortWithError(500, err)
 		return
 	}
 
+	logger.Logger.Info("Successfully wrote command", zap.String("ServerId", serverId), zap.String("Command", request.Command))
 	ctx.JSON(200, "OK")
 }
 
@@ -301,8 +302,9 @@ func (con ServersApi) AttachServer(ctx *gin.Context) {
 
 	defer func() {
 		if err != nil {
-			log.Printf("The latest error is %s", err)
+			logger.Logger.Error("Interactive Terminal latest error", zap.Error(err))
 		}
+
 		close(websocketRead)
 		close(containerRead)
 	}()
@@ -375,7 +377,7 @@ func (con ServersApi) AttachServer(ctx *gin.Context) {
 			case "insert":
 				_, err = hijacked.Conn.Write([]byte(Command.Arguments))
 				if err != nil {
-					log.Printf("Write to docker failed %s", errors.Unwrap(err))
+					logger.Logger.Error("Write to docker failed", zap.Error(err))
 
 					stop = true
 					break
@@ -400,13 +402,13 @@ func (con ServersApi) AttachServer(ctx *gin.Context) {
 
 				err2 = hijacked.ResizerFunc(width, height)
 				if err2 != nil {
-					log.Printf("Failed to resize container to %dx%d: %s", width, height, err)
+					logger.Logger.Error("Failed to resize container", zap.Uint("width", width), zap.Uint("height", height), zap.Error(err))
 				}
 			}
 		case data := <-containerRead:
 			err := ws.WriteJSON(data)
 			if err != nil {
-				log.Printf("Write to socket failed %s", errors.Unwrap(err))
+				logger.Logger.Error("Write to socket failed", zap.Error(err))
 				stop = true
 			}
 		}
@@ -442,7 +444,7 @@ func (con ServersApi) UpdateServer(ctx *gin.Context) {
 	for user, permissions := range request.UserPermissions {
 		err = con.ServerAuthorization.SetPermissions(ctx, user, serverId, permissions)
 		if err != nil {
-			log.Printf("failed to change user %s permissions for server %s due to %e", user, serverId, err)
+			logger.Logger.Error("failed to change user's server permissions", zap.String("user", user), zap.String("ServerId", serverId), zap.Error(err))
 			continue
 		}
 	}