Update app.py

app.py

@@ -60,10 +60,10 @@ def math_solution_openrouter(api_key, prob_text, history=None):
 
         return solution, history
     
-     except Exception as e:
-         error_message= f"Error:{str(e)}"
+    except Exception as e:
+        error_message= f"Error:{str(e)}"
 
-         return error_message, history
+        return error_message, history
          
         
 #image processing