[Serusers] Credentials with given realm not found

[Alex]

Hi guys maybe someone can find the problem, i still can't see anything
going to radius authentication. (the radius logs are empty)

the register request is coming but it's not going to authenticate
through the radius.
Any help will be appreciated.

here is the debug from ser :
---------------------------------------------------------------------------------------------
14(1036) parse_headers: flags=-1
14(1036) check_via_address(62.219.158.191, 62.219.158.191, 1)
14(1036) DEBUG:destroy_avp_list: destroing list (nil)
14(1036) receive_msg: cleaning up
 9(1012) SIP Request:
 9(1012)  method:  <REGISTER>
 9(1012)  uri:     <sip:xxx.xxx.xxx.xxx>
 9(1012)  version: <SIP/2.0>
 9(1012) parse_headers: flags=1
 9(1012) Found param type 232, <branch> = <z9hG4bKfc5751413c832e6d>; state=16
 9(1012) end of header reached, state=5
 9(1012) parse_headers: Via found, flags=1
 9(1012) parse_headers: this is the first via
 9(1012) After parse_msg...
 9(1012) preparing to run routing scripts...
 9(1012) REGISTER: Authenticating user
 9(1012) parse_headers: flags=4
 9(1012) end of header reached, state=9
 9(1012) DEBUG: get_hdr_field: <To> [45];
uri=[sip:phonenumber at xxx.xxx.xxx.xxx;user=phone]
 9(1012) DEBUG: to body [<sip:phonenumber at xxx.xxx.xxx.xxx;user=phone>
]

 9(1012) parse_headers: flags=4096
 9(1012) get_hdr_field: cseq <CSeq>: <103> <REGISTER>
 9(1012) DEBUG: get_hdr_body : content_length=0
 9(1012) found end of header
 9(1012) pre_auth(): Credentials with given realm not found
 9(1012) REGISTER: challenging user
 9(1012) build_auth_hf(): 'WWW-Authenticate: Digest
realm="xxx.xxx.xxx.xxx",
nonce="425e063022afc1142ed6730d46da41692ff3ed57"