The kitten keeps meowing in its new home, possibly because it feels anxious, lonely, and scared. To alleviate this, you can take the following steps:
Give your kitten enough time and space to adjust to its new environment. Don't force it to be close to you or have any physical contact; let it adjust gradually. Placing some soft blankets or toys in its familiar environment can help it feel secure.
Provide the kitten with a safe space, such as a comfortable cat bed or cage, to make it feel secure. Before the kitten becomes familiar with its new environment, minimize external disturbances and stimulation, and avoid excessive contact with people and other pets.

Proper guidance can help kittens understand their needs and emotions. Observe its behavior and reactions, try to understand its needs, and try to meet them. For example, if it is hungry, provide enough food and water; if it needs to play, provide appropriate toys.
Encouraging interaction and play can build better relationships and provide a sense of security. Interacting with your kitten helps establish trust and an emotional bond, reducing anxiety and feelings of loss in the kitten.
Seek professional help. If the kitten continues to cry and the crying doesn't subside, it's recommended to consult a veterinarian or feline behavior specialist for professional advice. They can assess the kitten's condition and provide appropriate guidance and training methods.