What is the possible cause of this?

Wow, why not just say it's broke?

Please provide us with some useful diagnostic information.

What size breaker. What is on the circuit that the breaker protects. What devices are active when the breaker trips.

For example, Mary is in the bathroom drying her hair when her sister Jane is also drying her hair and the circuit breaker trips.

Please give use something to work with.

As donf stated need more info.

Possible cause too much on circuit.

Chuck