diff --git a/src/init/sd_card.rs b/src/init/sd_card.rs
index d90ce17..9fa50d8 100644
--- a/src/init/sd_card.rs
+++ b/src/init/sd_card.rs
@@ -42,13 +42,16 @@ impl Persistence for SDCardPersistence {
     async fn load_day(&mut self, day: crate::store::Date) -> Option<AttendanceDay> {
         let mut vol_0 = self.vol_mgr.open_volume(VolumeIdx(0)).unwrap();
         let mut root_dir = vol_0.open_root_dir().unwrap();
-        let mut file = root_dir
-            .open_file_in_dir("day.jsn", embedded_sdmmc::Mode::ReadOnly)
-            .unwrap();
+        let mut file = root_dir.open_file_in_dir("day.jsn", embedded_sdmmc::Mode::ReadOnly);
+
+        if let Err(e) = file {
+            return None;
+        }
+        let mut open_file = file.unwrap();
 
         let mut read_buffer: [u8; 1024] = [0; 1024];
-        let read = file.read(&mut read_buffer).unwrap();
-        file.close().unwrap();
+        let read = open_file.read(&mut read_buffer).unwrap();
+        open_file.close().unwrap();
 
         let day: AttendanceDay = serde_json::from_slice(&read_buffer[..read]).unwrap();
 
diff --git a/src/store/id_store.rs b/src/store/id_store.rs
index 979a576..d122c77 100644
--- a/src/store/id_store.rs
+++ b/src/store/id_store.rs
@@ -41,10 +41,10 @@ pub struct IDStore<T: Persistence> {
 
 impl<T: Persistence> IDStore<T> {
     pub async fn new_from_storage(mut persistence_layer: T) -> Self {
-        let mapping = match persistence_layer.load_mapping().await {
-            Some(map) => map,
-            None => IDMapping::new(),
-        };
+        // let mapping = match persistence_layer.load_mapping().await {
+        //     Some(map) => map,
+        //     None => IDMapping::new(),
+        // };
 
         let current_date: Date = 1;
 
@@ -55,7 +55,7 @@ impl<T: Persistence> IDStore<T> {
 
         Self {
             current_day: day,
-            mapping,
+            mapping: IDMapping::new(),
             persistence_layer,
         }
     }