MATLAB has a nesting limit of 7 on block comments, and this file exceeds that limit. Block comment indicators, %{ and %}, must be the only characters on the lines on which they appear. Therefore, code such as the following does not end a block comment:

%} end of block comment

This error could cause your file to appear to have deeply nested block comments, when that was not your intent.

Make sure that you have specified block comment indicators properly. Review the code in the Editor to ensure that the comments include only the lines that you expect. If so, remove some levels of nesting. Removing inner block comments lowers the nesting level.