get_circuit_info() for pre-seaon testing is returning error

[dheerajtsv]

Describe the issue:

I tried it for last season also. It prompts the same error.

Reproduce the code example:

import fastf1 as f1
session = f1.get_testing_session(2025,1,1)
session.load()
session.get_circuit_info()

Error message:

data        WARNING 	Failed to load circuit info

   2510     circuit_key = 146
   2512 circuit_info = get_circuit_info(year=self.event.year,
   2513                                 circuit_key=circuit_key)
-> 2514 circuit_info.add_marker_distance(
   2515     reference_lap=self.laps.pick_fastest()
   2516 )
   2517 return circuit_info

AttributeError: 'NoneType' object has no attribute 'add_marker_distance'