The entire line is [/html]? It isn't part of a string? That isn't valid PHP (or HTML) syntax. This could be related to not closing a PHP tag ( ?> ). Post more of your code for a better answer, you can find a guide to posting code in my signature.
The code you posted only goes up to line 219 and I don't see the text [/html] anywhere. Also when you post code it helps to mark the line in question (237 in this case).
NextToNothing, There`re so few information about your problem, and I`m not soothsayer, but maybe, you didn`t close cycle. Check your code, please, and say.