Starting Problems during Boot Sequence

Hi,

after a couple of reeboots I can’t start Max2Play anymore on my Raspberry Pi 2.
My setup is the Pi2 with HifiBerry DAC+ and the official 7´´ Display.

During the starting sequence it stops with the following text on the display:

[OK] Started Update UTMP about System Runlevel Changes.
Welcome to rescue mode! Type „systemctl default“ or ^D to enter default mode.
Type „journalctl -xb“ to view system logs. Type „systemctl reboot“ to reboot.
Give root password for maintenance
(or type Control-D to continue): [ 55.297195] random: nonblocking pool is initialized

What can I do to fix this?

Thanks in advance.