[Python] i can't fix this error when evaluating my RL model

I'm working with a Gym environment and a trained RL model. I'm running an evaluation loop to collect observations and rewards. Here's a snippet of the code:

total_reward = 0
obs_test = env_test.reset()
all_mirs = []

for step in range(1728): # For 24 hours with 5-min intervals
action, _ = model.predict(obs_test)
obs_test, reward, done, info = env_test.step(action)

all_mirs += list(obs_test[0][20:30]) # <-- This line causes the error

total_reward += reward / 1728
if done:
obs_test = env_test.reset()


And here’s the error I’m getting:

IndexError: single positional indexer is out-of-bounds


knowing that: obs_test length = 1 First element shape = (70,)

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