diff --git a/src/main.rs b/src/main.rs
index 9bd5513..10ef728 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -46,15 +46,26 @@ fn main() -> Result<(), Box<dyn Error>> {
     dotenv::dotenv().ok();
 
     let usercode = std::env::var("ANTARES_USERCODE")
-        .map_err(|_| "Missing environment variable: ANTARES_USERCODE. Create a .env file with ANTARES_USERCODE, ANTARES_PASSWORD, and OUT. See .env.example for reference.")?;
+        .map_err(|e| {
+            logger.log_error(&format!("Missing environment variable: ANTARES_USERCODE. {}", e));
+            Box::new(std::io::Error::new(std::io::ErrorKind::Other, "Missing ANTARES_USERCODE env var".to_string()))
+        })?;
     let password = std::env::var("ANTARES_PASSWORD")
-        .map_err(|_| "Missing environment variable: ANTARES_PASSWORD. Create a .env file with ANTARES_USERCODE, ANTARES_PASSWORD, and OUT. See .env.example for reference.")?;
+        .map_err(|e| {
+            logger.log_error(&format!("Missing environment variable: ANTARES_PASSWORD. {}", e));
+            Box::new(std::io::Error::new(std::io::ErrorKind::Other, "Missing ANTARES_PASSWORD env var".to_string()))
+        })?;
     let out_path = std::env::var("OUT")
-        .map_err(|_| "Missing environment variable: OUT. Create a .env file with URL, ANTARES_USERCODE, ANTARES_PASSWORD, and OUT. See .env.example for reference.")?;
+        .map_err(|e| {
+            logger.log_error(&format!("Missing environment variable: OUT. {}", e));
+            Box::new(std::io::Error::new(std::io::ErrorKind::Other, "Missing OUT env var".to_string()))
+        })?;
 
-    // Separate values - read base URL from environment variable
     let base = std::env::var("URL")
-        .map_err(|_| "Missing environment variable: URL. Create a .env file with URL, ANTARES_USERCODE, ANTARES_PASSWORD, and OUT. See .env.example for reference.")?;
+        .map_err(|e| {
+            logger.log_error(&format!("Missing environment variable: URL. {}", e));
+            Box::new(std::io::Error::new(std::io::ErrorKind::Other, "Missing URL env var".to_string()))
+        })?;
 
     let cikkszam = ""; // supply a value if needed;