diff --git a/internal/repository/booking/pg_store.go b/internal/repository/booking/pg_store.go
index c40f10b..9483440 100644
--- a/internal/repository/booking/pg_store.go
+++ b/internal/repository/booking/pg_store.go
@@ -81,10 +81,13 @@ func (ps *PgStore) CardTotal(from, to time.Time) (float64, error) {
 	return total, nil
 }
 
-func (ps *PgStore) Get(id int) *booking.Booking {
+func (ps *PgStore) Get(id int) (*booking.Booking, error) {
 	var b booking.Booking
-	ps.db.Preload("Items").Preload("Payments").First(&b, id)
-	return &b
+	res := ps.db.Preload("Items").Preload("Payments").First(&b, id)
+	if err := res.Error; err != nil {
+		return nil, err
+	}
+	return &b, nil
 }
 
 func (ps *PgStore) Create(b *booking.Booking) error {
diff --git a/internal/server/handle_bookings.go b/internal/server/handle_bookings.go
index 093d1e6..1120038 100644
--- a/internal/server/handle_bookings.go
+++ b/internal/server/handle_bookings.go
@@ -16,6 +16,7 @@ import (
 	"github.com/go-chi/chi/v5"
 	u "github.com/rjNemo/underscore"
 
+	"github.com/rjNemo/rentease/assets"
 	"github.com/rjNemo/rentease/internal/config"
 	"github.com/rjNemo/rentease/internal/constant"
 	"github.com/rjNemo/rentease/internal/service/booking"
@@ -167,7 +168,11 @@ func handleBookingPage(bs *booking.Service, hc *config.Host) http.HandlerFunc {
 			return
 		}
 
-		b := bs.One(id)
+		b, err := bs.One(id)
+		if err != nil {
+			renderHTTPErrorPage(w, http.StatusNotFound)
+			return
+		}
 
 		var eid string
 		if b.ExternalID == nil {
@@ -380,7 +385,10 @@ func handleCreateItem(bs *booking.Service, hc *config.Host) http.HandlerFunc {
 			return
 		}
 
-		b := bs.One(bid)
+		b, err := bs.One(bid)
+		if bookingLookupFailed(w, err) {
+			return
+		}
 
 		itemName := r.FormValue("item")
 		itm, ok := hc.Items[itemName]
@@ -550,3 +558,32 @@ func handleBookingCancel(bs *booking.Service) http.HandlerFunc {
 		}
 	}
 }
+
+func bookingLookupFailed(w http.ResponseWriter, err error) bool {
+	if err == nil {
+		return false
+	}
+
+	if errors.Is(err, booking.ErrBookingNotFound) {
+		renderHTTPErrorPage(w, http.StatusNotFound)
+		return true
+	}
+
+	renderHTTPErrorPage(w, http.StatusInternalServerError)
+	return true
+}
+
+func renderHTTPErrorPage(w http.ResponseWriter, status int) {
+	pagePath := fmt.Sprintf("assets/html/HTTP%d.html", status)
+	page, err := assets.Static.ReadFile(pagePath)
+	if err != nil {
+		http.Error(w, http.StatusText(status), status)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	w.WriteHeader(status)
+	if _, err := w.Write(page); err != nil {
+		slog.Error("failed to write error page", slog.Any("path", pagePath), slog.Any("error", err))
+	}
+}
diff --git a/internal/server/handle_payments.go b/internal/server/handle_payments.go
index de7bc2a..7417fe7 100644
--- a/internal/server/handle_payments.go
+++ b/internal/server/handle_payments.go
@@ -34,14 +34,20 @@ func handleCreatePayment(bs *booking.Service, hc *config.Host) http.HandlerFunc
 			}
 		}
 
-		b := bs.One(id)
+		b, err := bs.One(id)
+		if bookingLookupFailed(w, err) {
+			return
+		}
 
 		if _, err := bs.CreatePayment(b.ID, amount, r.FormValue("paymentMethod")); err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		nb := bs.One(id)
+		nb, err := bs.One(id)
+		if bookingLookupFailed(w, err) {
+			return
+		}
 
 		component := view.PaymentList(
 			u.Map(nb.Payments, func(p booking.Payment) *view.PaymentViewModel {
diff --git a/internal/server/handle_pdf.go b/internal/server/handle_pdf.go
index 6334eb2..0d11dc9 100644
--- a/internal/server/handle_pdf.go
+++ b/internal/server/handle_pdf.go
@@ -22,7 +22,10 @@ func handlePdfCreateInvoice(bs *booking.Service, hc *config.Host) http.HandlerFu
 			return
 		}
 
-		b := bs.One(id)
+		b, err := bs.One(id)
+		if bookingLookupFailed(w, err) {
+			return
+		}
 
 		filePath, err := bs.BuildInvoice(b, hc)
 		if err != nil {
diff --git a/internal/server/server.go b/internal/server/server.go
index 78b7ace..745ff5f 100644
--- a/internal/server/server.go
+++ b/internal/server/server.go
@@ -130,5 +130,27 @@ func NewRouter(filesystem embed.FS, debug bool, origins []string) (*chi.Mux, err
 	fileServer := http.StripPrefix("/static/", http.FileServer(http.FS(assetsFS)))
 	r.Handle("/static/*", fileServer)
 
+	notFoundHandler, err := newHTTPErrorHandler(filesystem, http.StatusNotFound)
+	if err != nil {
+		return nil, fmt.Errorf("failed to setup not found handler: %w", err)
+	}
+	r.NotFound(notFoundHandler)
+
 	return r, nil
 }
+
+func newHTTPErrorHandler(filesystem embed.FS, statusCode int) (http.HandlerFunc, error) {
+	filePath := fmt.Sprintf("assets/html/HTTP%d.html", statusCode)
+	page, err := fs.ReadFile(filesystem, filePath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read error page %s: %w", filePath, err)
+	}
+
+	return func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		w.WriteHeader(statusCode)
+		if _, err := w.Write(page); err != nil {
+			slog.Error("failed to write error page", slog.Any("error", err))
+		}
+	}, nil
+}
diff --git a/internal/service/booking/service.go b/internal/service/booking/service.go
index 94b900d..46ee888 100644
--- a/internal/service/booking/service.go
+++ b/internal/service/booking/service.go
@@ -2,9 +2,12 @@ package booking
 
 import (
 	"context"
+	"errors"
 	"log/slog"
 	"time"
 
+	"gorm.io/gorm"
+
 	"github.com/rjNemo/rentease/internal/config"
 	stripeclient "github.com/rjNemo/rentease/internal/driver/stripe"
 )
@@ -14,7 +17,7 @@ type Store interface {
 	Search(value string) []*Line
 	List(from, to time.Time) ([]*Line, error)
 	CardTotal(from, to time.Time) (float64, error)
-	Get(id int) *Booking
+	Get(id int) (*Booking, error)
 	Create(b *Booking) error
 	Update(b *Booking) error
 	Cancel(id int) error
@@ -95,8 +98,15 @@ func (bs Service) Create(From time.Time, To time.Time, Name, PhoneNumber, Email,
 	return b
 }
 
-func (bs Service) One(id int) *Booking {
-	return bs.store.Get(id)
+func (bs Service) One(id int) (*Booking, error) {
+	b, err := bs.store.Get(id)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, ErrBookingNotFound
+		}
+		return nil, err
+	}
+	return b, nil
 }
 
 // Update updates an existing booking with new data
diff --git a/internal/service/booking/stripe_payment_link.go b/internal/service/booking/stripe_payment_link.go
index db3c87a..05a758c 100644
--- a/internal/service/booking/stripe_payment_link.go
+++ b/internal/service/booking/stripe_payment_link.go
@@ -22,7 +22,7 @@ func (bs Service) CreateStripePaymentLink(ctx context.Context, bookingID int) (s
 		return "", ErrStripeClientNotConfigured
 	}
 
-	b := bs.store.Get(bookingID)
+	b, _ := bs.store.Get(bookingID)
 	if b == nil || b.ID == 0 {
 		return "", ErrBookingNotFound
 	}
diff --git a/internal/service/booking/stripe_sync_test.go b/internal/service/booking/stripe_sync_test.go
index df21295..dc270ad 100644
--- a/internal/service/booking/stripe_sync_test.go
+++ b/internal/service/booking/stripe_sync_test.go
@@ -52,7 +52,7 @@ func (m *mockStore) All() []*Line                                    { return ni
 func (m *mockStore) Search(string) []*Line                           { return nil }
 func (m *mockStore) List(time.Time, time.Time) ([]*Line, error)      { return nil, nil }
 func (m *mockStore) CardTotal(time.Time, time.Time) (float64, error) { return 0, nil }
-func (m *mockStore) Get(int) *Booking                                { return nil }
+func (m *mockStore) Get(int) (*Booking, error)                       { return nil, nil }
 func (m *mockStore) Create(*Booking) error                           { return nil }
 func (m *mockStore) Update(*Booking) error                           { return nil }
 func (m *mockStore) Cancel(int) error                                { return nil }