I've seen the "Data Stream Ordering Error" from time to time as well, and I agree with Steve Hankins that it doesn't seem to cause any issues.
As Ron Cloninger said, you can't start the base because you have bogus coordinates for the base position. Follow his instruction and provide a good coordinate (within 30m of the true 3D position).
Also, you should change the UHF configuration settings:
Don't use 440. Use whatever your licensed for (461.025 is a commonly used frequency in the US).
Don't use 0.2 rate. Set it to 1 second
Don't use 25 kHz. Narrowband requires 12.5kHz (which is a shame because you can squeeze more range from 12.5 kHz).
If you are using Galileo and Beidou from the Triumph-2, use RTCM 3.2 MSM Short and D8PSK
If you are using GPS and Glonass only, keep using RTCM 3 Min and DQPSK