diff --git a/export_presets.cfg b/export_presets.cfg
index 920dad68..2088e7f6 100644
--- a/export_presets.cfg
+++ b/export_presets.cfg
@@ -38,7 +38,7 @@ architectures/armeabi-v7a=false
 architectures/arm64-v8a=true
 architectures/x86=false
 architectures/x86_64=false
-version/code=70
+version/code=71
 version/name=""
 package/unique_name="org.godotengine.kalulu"
 package/name="Kalulu"
diff --git a/sources/menus/login/login.gd b/sources/menus/login/login.gd
index 53cdd49c..40cf922a 100644
--- a/sources/menus/login/login.gd
+++ b/sources/menus/login/login.gd
@@ -2,7 +2,7 @@ extends Control
 
 const TEACHER_PASSWORD: String = "42"
 const BACK_SCENE_PATH: String = "res://sources/menus/main/main_menu.tscn"
-const NEXT_SCENE_PATH: String = "res://sources/gardens/gardens.tscn"
+const NEXT_SCENE: PackedScene = preload("res://sources/gardens/gardens.tscn")
 const TEACHER_SCENE_PATH: String = "res://sources/menus/settings/teacher_settings.tscn"
 const DEVELOPER_SCENE_PATH: String = "res://sources/menus/settings/developer_settings.tscn"
 const PACKAGE_LOADER_SCENE_PATH: String = "res://sources/menus/language_selection/package_downloader.tscn"
@@ -65,8 +65,8 @@ func _on_code_keyboard_password_entered(password: String) -> void:
 		kalulu_button.hide()
 		await kalulu.play_kalulu_speech(right_password_speech)
 		await OpeningCurtain.close()
-		Log.trace("LoginScreen: Start loading next scene %s" % NEXT_SCENE_PATH)
-		get_tree().change_scene_to_file(NEXT_SCENE_PATH)
+		Log.trace("LoginScreen: Start loading next scene")
+		get_tree().change_scene_to_packed(NEXT_SCENE)
 		Log.trace("LoginScreen: End loading next scene")
 	else:
 		Log.warn("LoginScreen: Unknown student code entered (length=%d)" % password.length())
diff --git a/sources/ui/popup.gd b/sources/ui/popup.gd
index 60d8c7d8..053265a2 100644
--- a/sources/ui/popup.gd
+++ b/sources/ui/popup.gd
@@ -37,9 +37,9 @@ func _set_cancel_text(p_content_text: String) -> void:
 	cancel_button.text = p_content_text
 
 
-func set_buttons_visible(is_visible: bool) -> void:
-	confirm_button.visible = is_visible
-	cancel_button.visible = is_visible
+func set_buttons_visible(is_button_visible: bool) -> void:
+	confirm_button.visible = is_button_visible
+	cancel_button.visible = is_button_visible
 
 
 func set_buttons_enabled(is_enabled: bool) -> void:
diff --git a/sources/utils/autoloads/log.gd b/sources/utils/autoloads/log.gd
index c14918bf..ffc87015 100644
--- a/sources/utils/autoloads/log.gd
+++ b/sources/utils/autoloads/log.gd
@@ -291,7 +291,7 @@ func _read_session_logs(session_files: Array) -> PackedStringArray:
 	session_files.sort_custom(func(a: Dictionary, b: Dictionary) -> bool: return a["rotation"] < b["rotation"])
 	var session_lines: PackedStringArray = []
 	for file_info: Dictionary in session_files:
-		var path: String = LOG_PATH + String(file_info["file_name"])
+		var path: String = LOG_PATH + String(file_info["file_name"] as String)
 		var file: FileAccess = FileAccess.open(path, FileAccess.READ)
 		if file == null:
 			continue