fix: wrap locale reading in try/except statement

ORStools/ORStoolsPlugin.py

@@ -29,7 +29,7 @@
 
 from qgis.gui import QgisInterface
 from qgis.core import QgsApplication, QgsSettings
-from qgis.PyQt.QtCore import QTranslator, qVersion, QCoreApplication
+from qgis.PyQt.QtCore import QTranslator, qVersion, QCoreApplication, QLocale
 import os.path
 
 from .gui import ORStoolsDialog
@@ -56,15 +56,22 @@ def __init__(self, iface: QgisInterface) -> None:
         self.plugin_dir = os.path.dirname(__file__)
 
         # initialize locale
-        locale = QgsSettings().value("locale/userLocale")[0:2]
-        locale_path = os.path.join(self.plugin_dir, "i18n", "orstools_{}.qm".format(locale))
-
-        if os.path.exists(locale_path):
-            self.translator = QTranslator()
-            self.translator.load(locale_path)
-
-            if qVersion() > "4.3.3":
-                QCoreApplication.installTranslator(self.translator)
+        try:
+            locale = QgsSettings().value("locale/userLocale")
+            if not locale:
+                locale = QLocale().name()
+            locale = locale[0:2]
+
+            locale_path = os.path.join(self.plugin_dir, "i18n", "orstools_{}.qm".format(locale))
+
+            if os.path.exists(locale_path):
+                self.translator = QTranslator()
+                self.translator.load(locale_path)
+
+                if qVersion() > "4.3.3":
+                    QCoreApplication.installTranslator(self.translator)
+        except TypeError:
+            pass
 
     def initGui(self) -> None:
         """Create the menu entries and toolbar icons inside the QGIS GUI."""