diff --git a/pkg/internal/server/api/channel_members_api.go b/pkg/internal/server/api/channel_members_api.go
index 15b8f46..d4cc06b 100644
--- a/pkg/internal/server/api/channel_members_api.go
+++ b/pkg/internal/server/api/channel_members_api.go
@@ -213,7 +213,7 @@ func joinChannel(c *fiber.Ctx) error {
 		return fiber.NewError(fiber.StatusBadRequest, "you was impossible to join a channel without related realm")
 	}
 
-	if realm, err := services.GetRealm(channel.Realm.ExternalID); err != nil {
+	if realm, err := services.GetRealmWithExtID(channel.Realm.ExternalID); err != nil {
 		return fiber.NewError(fiber.StatusInternalServerError, fmt.Sprintf("invalid channel, related realm was not found: %v", err))
 	} else if _, err := services.GetRealmMember(realm.ExternalID, user.ExternalID); err != nil {
 		return fiber.NewError(fiber.StatusBadRequest, fmt.Sprintf("you are not a part of the realm: %v", err))
diff --git a/pkg/internal/services/calls.go b/pkg/internal/services/calls.go
index fcdbd52..b7513f3 100644
--- a/pkg/internal/services/calls.go
+++ b/pkg/internal/services/calls.go
@@ -69,7 +69,7 @@ func GetOngoingCall(channel models.Channel) (models.Call, error) {
 func NewCall(channel models.Channel, founder models.ChannelMember) (models.Call, error) {
 	call := models.Call{
 		ExternalID: channel.Alias,
-		FounderID:  founder.ID,
+		FounderID:  founder.AccountID,
 		ChannelID:  channel.ID,
 		Founder:    founder,
 		Channel:    channel,
diff --git a/pkg/internal/services/realms.go b/pkg/internal/services/realms.go
index bef5d35..cdc1f94 100644
--- a/pkg/internal/services/realms.go
+++ b/pkg/internal/services/realms.go
@@ -13,7 +13,7 @@ import (
 	"reflect"
 )
 
-func GetRealm(id uint) (models.Realm, error) {
+func GetRealmWithExtID(id uint) (models.Realm, error) {
 	var realm models.Realm
 	pc, err := gap.H.DiscoverServiceGRPC("Hydrogen.Passport")
 	if err != nil {
@@ -44,12 +44,16 @@ func GetRealmWithAlias(alias string) (models.Realm, error) {
 }
 
 func GetRealmMember(realmId uint, userId uint) (*proto.RealmMemberResponse, error) {
+	var realm models.Realm
+	if err := database.C.Where("id = ?", realmId).First(&realm).Error; err != nil {
+		return nil, err
+	}
 	pc, err := gap.H.DiscoverServiceGRPC("Hydrogen.Passport")
 	if err != nil {
 		return nil, err
 	}
 	response, err := proto.NewRealmsClient(pc).GetRealmMember(context.Background(), &proto.RealmMemberLookupRequest{
-		RealmId: uint64(realmId),
+		RealmId: uint64(realm.ExternalID),
 		UserId:  lo.ToPtr(uint64(userId)),
 	})
 	if err != nil {