diff --git a/find_duplicate_files/find_duplicate_files.py b/find_duplicate_files/find_duplicate_files.py
index cdc528f..27b8254 100644
--- a/find_duplicate_files/find_duplicate_files.py
+++ b/find_duplicate_files/find_duplicate_files.py
@@ -60,7 +60,12 @@ class find_duplicate_files:
 
     def _check_file_cache(self, file):
         file_sql = file.replace("'", "\'")
-        result = self.cur.execute(f"SELECT hash FROM files WHERE file = '{file_sql}'")
+        query = f"SELECT hash FROM files WHERE file = '{file_sql}'"
+        try:
+            result = self.cur.execute(query)
+        except Exception as error:
+            self._log.error("Error executing query '{query}'. {error}")
+            sys.exit(2)
         row = result.fetchone()
         if row and len(row) > 0:
             return row[0]
@@ -69,7 +74,12 @@ class find_duplicate_files:
 
     def _cache_file(self, file, hash):
         file_sql = file.replace("'", "\'")
-        result = self.cur.execute(f"INSERT INTO files (hash, file) VALUES ('{file_sql}', '{hash}')")
+        query = f"INSERT INTO files (hash, file) VALUES ('{file_sql}', '{hash}')"
+        try:
+            result = self.cur.execute(query)
+        except Exception as error:
+            self._log.error("Error executing query '{query}'. {error}")
+            sys.exit(3)
         self.cache_db.commit()
         return result