diff --git a/src-tauri/src/error/process_error.rs b/src-tauri/src/error/process_error.rs
index fa4ddb5..22c145a 100644
--- a/src-tauri/src/error/process_error.rs
+++ b/src-tauri/src/error/process_error.rs
@@ -11,7 +11,8 @@ pub enum ProcessError {
     IOError(Error),
     FormatError(String), // String errors supremacy
     InvalidPlatform,
-    OpenerError(tauri_plugin_opener::Error)
+    OpenerError(tauri_plugin_opener::Error),
+    InvalidArguments(String)
 }
 
 impl Display for ProcessError {
@@ -23,8 +24,9 @@ impl Display for ProcessError {
             ProcessError::InvalidVersion => "Invalid game version",
             ProcessError::IOError(error) => &error.to_string(),
             ProcessError::InvalidPlatform => "This game cannot be played on the current platform",
-            ProcessError::FormatError(e) => &format!("Failed to format template: {e}"),
-            ProcessError::OpenerError(error) => &format!("Failed to open directory: {error}"),
+            ProcessError::FormatError(e) => &format!("Could not format template: {e}"),
+            ProcessError::OpenerError(error) => &format!("Could not open directory: {error}"),
+            ProcessError::InvalidArguments(arguments) => &format!("Invalid arguments in command {arguments}"),
                     };
         write!(f, "{s}")
     }
diff --git a/src-tauri/src/process/process_handlers.rs b/src-tauri/src/process/process_handlers.rs
index dcbee5c..00a6be3 100644
--- a/src-tauri/src/process/process_handlers.rs
+++ b/src-tauri/src/process/process_handlers.rs
@@ -10,6 +10,7 @@ use log::{debug, info};
 use crate::{
     AppState,
     database::models::data::{Database, DownloadableMetadata, GameVersion},
+    error::process_error::ProcessError,
     process::process_manager::{Platform, ProcessHandler},
 };
 
@@ -22,8 +23,8 @@ impl ProcessHandler for NativeGameLauncher {
         args: Vec<String>,
         _game_version: &GameVersion,
         _current_dir: &str,
-    ) -> String {
-        format!("\"{}\" {}", launch_command, args.join(" "))
+    ) -> Result<String, ProcessError> {
+        Ok(format!("\"{}\" {}", launch_command, args.join(" ")))
     }
 
     fn valid_for_platform(&self, _db: &Database, _state: &AppState, _target: &Platform) -> bool {
@@ -65,7 +66,7 @@ impl ProcessHandler for UMULauncher {
         args: Vec<String>,
         game_version: &GameVersion,
         _current_dir: &str,
-    ) -> String {
+    ) -> Result<String, ProcessError> {
         debug!("Game override: \"{:?}\"", &game_version.umu_id_override);
         let game_id = match &game_version.umu_id_override {
             Some(game_override) => {
@@ -77,12 +78,12 @@ impl ProcessHandler for UMULauncher {
             }
             None => game_version.game_id.clone(),
         };
-        format!(
+        Ok(format!(
             "GAMEID={game_id} {umu:?} \"{launch}\" {args}",
-            umu = UMU_LAUNCHER_EXECUTABLE.as_ref().unwrap(),
+            umu = UMU_LAUNCHER_EXECUTABLE.as_ref().expect("Failed to get UMU_LAUNCHER_EXECUTABLE as ref"),
             launch = launch_command,
             args = args.join(" ")
-        )
+        ))
     }
 
     fn valid_for_platform(&self, _db: &Database, state: &AppState, _target: &Platform) -> bool {
@@ -102,7 +103,7 @@ impl ProcessHandler for AsahiMuvmLauncher {
         args: Vec<String>,
         game_version: &GameVersion,
         current_dir: &str,
-    ) -> String {
+    ) -> Result<String, ProcessError> {
         let umu_launcher = UMULauncher {};
         let umu_string = umu_launcher.create_launch_process(
             meta,
@@ -110,15 +111,18 @@ impl ProcessHandler for AsahiMuvmLauncher {
             args,
             game_version,
             current_dir,
-        );
+        )?;
         let mut args_cmd = umu_string
             .split("umu-run")
             .collect::<Vec<&str>>()
             .into_iter();
-        let args = args_cmd.next().unwrap().trim();
-        let cmd = format!("umu-run{}", args_cmd.next().unwrap());
+        let args = args_cmd
+            .next()
+            .ok_or(ProcessError::InvalidArguments(umu_string.clone()))?
+            .trim();
+        let cmd = format!("umu-run{}", args_cmd.next().ok_or(ProcessError::InvalidArguments(umu_string.clone()))?);
 
-        format!("{args} muvm -- {cmd}")
+        Ok(format!("{args} muvm -- {cmd}"))
     }
 
     #[allow(unreachable_code)]
diff --git a/src-tauri/src/process/process_manager.rs b/src-tauri/src/process/process_manager.rs
index 901671f..d25e97d 100644
--- a/src-tauri/src/process/process_manager.rs
+++ b/src-tauri/src/process/process_manager.rs
@@ -331,7 +331,7 @@ impl ProcessManager<'_> {
             args.clone(),
             game_version,
             install_dir,
-        );
+        )?;
 
         let format_args = DropFormatArgs::new(
             launch_string,
@@ -468,7 +468,7 @@ pub trait ProcessHandler: Send + 'static {
         args: Vec<String>,
         game_version: &GameVersion,
         current_dir: &str,
-    ) -> String;
+    ) -> Result<String, ProcessError>;
 
     fn valid_for_platform(&self, db: &Database, state: &AppState, target: &Platform) -> bool;
 }
diff --git a/src-tauri/src/remote/auth.rs b/src-tauri/src/remote/auth.rs
index 9d97921..df36402 100644
--- a/src-tauri/src/remote/auth.rs
+++ b/src-tauri/src/remote/auth.rs
@@ -134,7 +134,7 @@ async fn recieve_handshake_logic(app: &AppHandle, path: String) -> Result<(), Re
         private: response_struct.private,
         cert: response_struct.certificate,
         client_id: response_struct.id,
-        web_token: Some(web_token), // gets created later
+        web_token: Some(web_token),
     });
 
     Ok(())