Thanks for the image.
There are two ways to remove this warning:
1) Increase your Y-axis' negative tick gap.
Analysing your image, it looks like you are setting a negative tick gap on your Y-axis to move the labels into the chart's canvas. The reason the warning is being displayed is the chart thinks the negative tick gap you have supplied isn't large enough to get the label's fully on screen based on the longest string your providing "####".
For example, if you are setting your Y-axis tick gap to -50 but the longest string length is calculated to be 60 pixels wide. To remove the error you need to have a tick gap of at least -60.
2) Turn off warning our ShinobiChart logs like so:
Let me know if you have any questions.