Kodi 17 Beta RS4

Pls Help, my IPTV stopped working I get this error message, could someone point me into any possible solutions

Thanks

02:13:26.235 T:139845393438464 ERROR: PVR – GetChannels – addon ‘Stalker Middleware:http://iptbx.noip.me/stalker_portal/c/’ returned an error: server error 02:13:26.235 T:139845393438464 ERROR: PVR – GetChannels – cannot get channels from client ‘1140460894’: server error 02:13:26.235 T:139845393438464 ERROR: PVRChannelGroup – Load – failed to update channels 02:13:26.235 T:139845393438464 ERROR: PVRChannelGroupInternal – Load – failed to load channels 02:13:26.235 T:139845393438464 ERROR: CPVRChannelGroups – Load – failed to load channels 02:13:26.235 T:139845393438464 ERROR: PVRManager – Process – failed to load PVR data, retrying 02:13:27.241 T:139845393438464 ERROR: PVR – GetChannels – addon ‘Stalker Middleware:http://iptbx.noip.me/stalker_portal/c/’ returned an error: server error 02:13:27.241 T:139845393438464 ERROR: PVR – GetChannels – cannot get channels from client ‘1140460894’: server error