Crash on iOS because of exceeding limite of wakeups

I’m getting a rejection because of a crash for my newly submitted game. When I look at the crash report I get this as the main event (behind the crash I think):

Event:            wakeups
Action taken:     none
Wakeups:          45001 wakeups over the last 41 seconds (1100 wakeups per second average), exceeding limit of 150 wakeups per second over 300 seconds
Wakeups limit:    45000
Limit duration:   300s
Wakeups caused:   45001
Wakeups duration: 41s
Duration:         40.89s
Duration Sampled: 29.73s
Steps:            7

Anyone knows what might cause that? have been look to all optimisation solutions but non mention this one.

Appreciate the help.