It's good you fixed it but if you installed the new styles ie default and removed the old ones that I thought you said you did, you should not be having this problem again. So did you reinstall one of the old styles again?

Nopz. Like i said i did same thing last time and i had this issue when u suggested remove all styles i did that when i removed all styles it removed all replacement variables as well. After that i didn't change it to xyz from abc and it was working fine, but when i made the replacement variable change again today i start getting the same error again.

Why are you using a replacement variable to change your domain name? You should change it in AdminCP > Settings > Options > Site Name/URL/etc > Forum URL. And, I would suggest using the search/replace in the templates if you need to change it in the templates (backup your style prior to doing this).

Lynne,

No i wasn't trying to change domain name in replacement variables. I was doing that to replace my old domain name ( like wherever in posts/threads it would say my old site name will change to new site name. like a thread says we at abc forum do care about copy rights laws & regulations and it should get changed to we at xyz forum do ...... ) I think i will try the second option u just suggested and see how it goes.

Thanks :)