This message means that the dynamic bar cannot be displayed by DBDOC because the span is zero. A non-zero value is required to display a bar graph.
--Scanning graphic 4ASUEHC1.DR Span is zero for dynamic bar 4TGC501XDI Module 4,04,02 Block 1034 TBN 4 MSV 1 OPEN on 4ASUEHC1.DR -- suppressing.
This error can be built directly into Hyperview. For more information, see the article Building error reports into the M14.