ClockworkMod Recovery pops up during phone turn on When I turn on my Galaxy S2 phone, ClockworkMod Recovery v4.0.0.2 pops up with the list of options,

1- reboot system now
2- apply update from sdcard
3- wipe  data/factory reset
4- wipe cache partition
5- install zip from sdcard
6- backup and restore
7- mounts and storage
8- advanced
9- power off


I am unable to figure out a way to turn on my phone. I am new to this so can you help in suggesting a way to access my phone? Every time I reboot the same ClockworkMod screen pops up.
Fixed it by rooting the phone with a different kernel version. Installing in appropriate kernel was the reason for this problem.