Problem:
The formula name 'Decimals' gone missing after I comment-out the code block.
Step by step illustration:
1.When I open my crystal report file it prompt this error.

2.After that when I try to F5 (Refresh) to get the output, it shows this error.

3.Then I comment out the whole code block. The error didn't appear anymore but now I cannot find back the formula.

Please guide me on how to revert back the changes. Thanks in advance!!