Yep it crashes after 10sec. Someone post your reaper and prime conf file if it is working for you...
Here is mine, as long as i have setgenerate true in the primecoin client running it stops crashing, not sure if its mining or not though??.
Primecoin.confhost 127.0.0.1
port 9912
user user
pass pass
protocol primecoin
worksize 64
aggression 21
sievepercentage 10
sievesize 20000000
primecoin_address AMRDdzf7trjGALy2rA3MSADAZbspRgZa3j
debug false
opencldebug false
cpu_mining_threads 4
use_gpu true
use_gpu_fermat_test true
getwork_rate 4000
reaper.confkernel reaper.cl
save_binaries yes
enable_graceful_shutdown no
long_polling yes
mine primecoin
#mine primecoin_testnet
device 0
device 1