diff --git a/src/plugin/callback_msg.rs b/src/plugin/callback_msg.rs
index 9a82adfec..826aa159f 100644
--- a/src/plugin/callback_msg.rs
+++ b/src/plugin/callback_msg.rs
@@ -311,7 +311,7 @@ fn request_plugin_sign(id: String, msg_to_rustdesk: MsgToRustDesk) -> PluginRetu
                                 &[],
                             ) {
                                 Ok(ret) => {
-                                    assert!(!ret.msg.is_null());
+                                    debug_assert!(!ret.msg.is_null(), "msg is null");
                                     let msg = cstr_to_string(ret.msg).unwrap_or_default();
                                     free_c_ptr(ret.msg as _);
                                     if ret.code == super::errno::ERR_SUCCESS {
diff --git a/src/plugin/mod.rs b/src/plugin/mod.rs
index f19f67dd1..d0b326dc3 100644
--- a/src/plugin/mod.rs
+++ b/src/plugin/mod.rs
@@ -80,7 +80,10 @@ impl PluginReturn {
         if self.is_success() {
             (self.code, "".to_owned())
         } else {
-            debug_assert!(!self.msg.is_null(), "msg is null");
+            if self.msg.is_null() {
+                log::warn!("The message pointer is null");
+                return (self.code, "".to_owned())
+            }
             let msg = cstr_to_string(self.msg).unwrap_or_default();
             free_c_ptr(self.msg as _);
             self.msg = null();
@@ -146,7 +149,6 @@ fn get_uninstall_file_path() -> ResultType<PathBuf> {
 
 #[inline]
 fn cstr_to_string(cstr: *const c_char) -> ResultType<String> {
-    assert!(!cstr.is_null(), "cstr must be a valid pointer");
     if cstr.is_null() {
         bail!("failed to convert string, the pointer is null");
     }