Conversion of type "h" to type "g" is not supported.

Conversion of type "h" to type "g" is not supported.
it arizes when i try to add LVC_T_SCOL in my structure and it work well without it.
I use method "gc_alv_table->display( )." of salv table displaying.

LKGJHU02 - point of the mistake. How to fix that and is it possible to colorize rows in salv table the other way.