diff --git a/src/__pycache__/branch_tab.cpython-39.pyc b/src/__pycache__/branch_tab.cpython-39.pyc
index 7be198e..5e6e1f0 100644
Binary files a/src/__pycache__/branch_tab.cpython-39.pyc and b/src/__pycache__/branch_tab.cpython-39.pyc differ
diff --git a/src/branch_tab.py b/src/branch_tab.py
index 05809a0..b216fa6 100644
--- a/src/branch_tab.py
+++ b/src/branch_tab.py
@@ -345,8 +345,14 @@ def open_in_text_editor(self, app=None):
 			messagebox.showerror('Error', message='Default Text Editor has not been Defined')
 			
 	def open_with_app(self, app, file):
-		subprocess.call([app, file])
-	
+		try:
+			subprocess.call([app, file])
+		except Exception as e:
+			msg = str(e)
+			if "cannot find the file" in msg:
+				msg = f'The app "{app}" cannot be found'
+			messagebox.showerror('Error', message=f"The following error occured\n\n {msg}")
+			
 	def new_folders(self):
 		self.w=AddFoldersWindow(self.mainapp, self.master, self)
 		self.master.wait_window(self.w.top)
diff --git a/src/main.py b/src/main.py
index 503725f..aa27709 100644
--- a/src/main.py
+++ b/src/main.py
@@ -49,7 +49,7 @@ def __init__(self, parent, *args, **kwargs):
 		self.switch_style("darkly")
 		
 	def setup_variables(self):
-		self.version = "0.33.8"
+		self.version = "0.33.9"
 		self.parent.title(f"Tk Path Finder V{self.version}")
 		self.config_data = config_file_manager.load_config_file(self)
 		self.plugin_folder = ".\Plugins"
diff --git a/src/tk_path_finder_config.json b/src/tk_path_finder_config.json
index f50bc08..68c57e5 100644
--- a/src/tk_path_finder_config.json
+++ b/src/tk_path_finder_config.json
@@ -38,6 +38,9 @@
     "open_with_apps": {
         ".py": [
             "C:\\Program Files\\Sublime Text 3\\sublime_text.exe"
+        ],
+        ".json": [
+            "fdgdfgdg"
         ]
     },
     "default_file_width": 600,