Fatal error: Cannot redeclare class ModelAccountAddress in /

Hi, guys, we just got this error on our store.

Fatal error: Cannot redeclare class ModelAccountAddress in /usr/local/www/sites/finezze/opencart/catalog/model/account/address.php on line 141

that appears when accessing my account (frontend) and trying to change the address on the following link:

http://www.finezze.com.br/index.php?rou ... nt/address

If necessary, http://www.finezze.com.br user name: test@test.com, password: test

any idea about it?

thank you

Sorry, just forgot to say... I`m usin OC 1.5.3.1 and Theme Shoppica 2.

most likely some vqmod file you are using that is causing it.

we deleted our vqmods, but the error is still there

Someone help?
All Vqmods deleted to test and the problem remains.