This message means that our analysis of the configuration of your slave FC specs suggests that there may be a problem with too many slaves chained together, or with more than one slave on the same channel.
In the example, you can see that Channel 17 has a problem. Two pairs of FC 84 blocks (blocks 720/730 and 740/750) have the same slave address 17. 18 and higher are unused, so the solution probably involves configuring the second pair to be the next slave.
--Module 31,30,04 Slave Report Multiple slave FCs on Module 31,30,04 channel 17: see slave report for details.
This error can be built directly into Hyperview. For more information, see the article Building error reports into the M14.