Kannel CMS ERROR: 500

group = core
admin-port = 13000
smsbox-port = 13001
admin-password = 1
log-file = "/var/log/kannel/kannel.log"
log-level = 0
dlr-storage = internal
store-file = "/home/kannel/kannel.store"

group = smsbox
bearerbox-host = "127.0.0.1"
sendsms-port = 13003
global-sender = ""

group = sendsms-user
username = foo
password = bar
concatenation = true
max-messages = 20


group = smsc
smsc = at
smsc-id = vodamodem
modemtype = auto
device=/dev/ttyUSB1
sms-center= "+79168999100"
my-number = "+7XXXXXXXXXX"
log-level = 0
sim-buffering = true
keepalive = 5

group = modems
id = huawei_e1550_00
name = "Huawei E1550"
name = "Generic Modem"
detect-string = "huawei"
init-string = "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0"
#sim-buffering = true
message-storage = "SM"
need-sleep = true
message-start = 0
speed = 9600