Calculating YC Allocation indicates invalid colors for L yarn carriers YCA_160

The color for the Colors L yarn carrier is invalid!

<!--Invalid Warp Yc Color(s) found: {0}-->

<Message Name="MSG_YCA_InvalidWarpYcColor" Id="0x340A0" Type="Dynamic">
<Meta Sign="YCA" ErrorId="YCA_160" IsCritical="true" IsSelectionable="false" /> <Parameter Name="Colors" Type="string" Description="Invalid Colors found in warp Ycs" /> </Message>