Profile Help, Please

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I tried to add some code to an html sortie in my profile and after several tries before the text box would even appear, it finally did. I added the code and clicked on view profile. Now I can't access my profile or messages, I get an error page something about a run time error, etc. I don't know html and was copying and pasting an embed code that has worked elswhere. How can I fix this or get help with it since I can't even send a message to mylot. Thanks.