To expand on what [id://Fletch] and [id://liverpole] have said, you should try to post the offending code here. However, before you do that, you really need to read How (Not) To Ask A Question, as it will help you avoid common mistakes that could result in unhelpful answers. Avoid painful lumps and bruises. Read How (Not) To Ask A Question.

I suggest that you pare down your code until it is the shortest possible script, yet still shows the error. If you haven't seen the answer then, go ahead and post the code here. In my experience (and many others here), the simple act of digging out the wayward code is enough to show you the error. Often it's obvious, but lost among all the other stuff going on.

And when you do post the code, use code tags: '<c>' and '</c>'. This will allow you to format the code so that it displays well, something your fellow monks will appreciate.