diff --git a/src/app/output/status.rs b/src/app/output/status.rs
index 1b7c9cd..29c1b4f 100644
--- a/src/app/output/status.rs
+++ b/src/app/output/status.rs
@@ -32,18 +32,21 @@ pub fn Status() -> impl IntoView {
                             "This shouldn't happen, please create an issue on github."
                         }
                         SQLitendError::OpenDb(_) | SQLitendError::Step(_) => {
-                            "If database disk image is malformed, enable the discard context option and run it once."
+                            "If database disk image is malformed, change the context option and run it once."
                         }
                         SQLitendError::Prepare(_) => "Check if the syntax is correct.",
                         SQLitendError::UnsupportColumnType(_) => {
                             "An unsupported type was encountered, please create an issue on github."
                         }
                     },
-                    WorkerError::NotFound | WorkerError::Unexpected => {
+                    WorkerError::NotOpened => {
+                        "This is most likely to happen only on OPFS VFS, switch VFS and try again."
+                    }
+                    WorkerError::Unexpected => {
                         "This shouldn't happen, please create an issue on github."
                     }
                     WorkerError::InvaildState => {
-                        "SQLite is in an abnormal state when executing sql, enable the discard context option and run it once."
+                        "SQLite is in an abnormal state when executing sql, change the context option and run it once."
                     }
                     WorkerError::LoadDb(_) => "Check whether the imported DB is a SQLite3 file.",
                     WorkerError::DownloadDb(_) => "It may be caused by OOM.",
diff --git a/src/lib.rs b/src/lib.rs
index e0fc720..fe8b049 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -77,8 +77,8 @@ impl SQLightError {
 pub enum WorkerError {
     #[error(transparent)]
     SQLite(#[from] SQLitendError),
-    #[error("Not found database")]
-    NotFound,
+    #[error("DB is not opened")]
+    NotOpened,
     #[error("Execute sqlite with invaild state")]
     InvaildState,
     #[error("OPFS already opened")]
diff --git a/src/worker/mod.rs b/src/worker/mod.rs
index 3b6f598..7d46e93 100644
--- a/src/worker/mod.rs
+++ b/src/worker/mod.rs
@@ -49,7 +49,7 @@ async fn with_worker<F, T>(mut f: F) -> Result<T>
 where
     F: FnMut(&mut SQLiteWorker) -> Result<T>,
 {
-    f(DB.lock().await.as_mut().ok_or(WorkerError::NotFound)?)
+    f(DB.lock().await.as_mut().ok_or(WorkerError::NotOpened)?)
 }
 
 async fn init_opfs_util() -> Result<&'static OpfsSAHPoolUtil> {