method not getwork

[Grawl]

I'm trying to mine on ltc.nushor.net and gets error with Reaper, here's a log:

Cybertron:Reaper grawlcore$ ./reaper
\|||||||||||||||||||||/
-  Reaper v12 64-bit  -
-   coded by mtrlt    -
/|||||||||||||||||||||\

List of platforms:
    0   Apple
Share thread started
Using platform number 0

Using all devices
    0   ATI Radeon Barts PRO Prototype
Compiling kernel... this could take up to 2 minutes.
Binary size: 220625 bytes
Program built from source.
Creating 2 GPU threads
1...2...done
2013-04-17 01:55:48 Error 28 getting work. See http://curl.haxx.se/libcurl/c/libcurl-errors.html for error code explanations.
2013-04-17 01:55:48 Couldn't connect to server. Trying again in a few seconds... 
2013-04-17 01:55:55 Error 28 getting work. See http://curl.haxx.se/libcurl/c/libcurl-errors.html for error code explanations.
2013-04-17 01:55:55 Couldn't connect to server. Trying again in a few seconds... 
2013-04-17 01:56:03 Error 28 getting work. See http://curl.haxx.se/libcurl/c/libcurl-errors.html for error code explanations.
2013-04-17 01:56:03 Couldn't connect to server. Trying again in a few seconds... 
2013-04-17 01:56:46 Error with server: {"id":1,"error":{"message":"method not getwork","code":-1},"result":null}
2013-04-17 01:56:51 Error with server: {"id":1,"error":{"message":"method not getwork","code":-1},"result":null}
2013-04-17 01:56:56 Error with server: {"id":1,"error":{"message":"method not getwork","code":-1},"result":null}
2013-04-17 01:57:07 Error with server: {"id":1,"error":{"message":"method not getwork","code":-1},"result":null}
^Cares: 0|0|0, invalid 0%, 80s

[GTRsdk]

Try using the stratum mining proxy