How can I resolve this error in the chart

[Algarve]

Can anyone help me how can I resolve this error in the chart?
Best regards!

[seandepagnier]

this not an error.

try pressing F9

[sailorF54]

Originally Posted by Algarve

Can anyone help me how can I resolve this error in the chart?
Best regards!

You can't in any simple way.
You could get the July 2012 set of charts, where the error is corrected.
In the meantime, I attach the relevant more recent file (remove .doc before replacing)

Added : Re Boat Alexandra, I take the colours of the ATONs to be the error

[sailorF54]

By the way, the Navionics chart is not correct either...