I've changed my Mac username and home directory name and Dropbox stoped working

Hello,
I've installed the dropbox app on my new mackbook and everything worked fine;
Then I have changed my username and the home directory name: It was /Users/Kiki-pessoal and now it is /Users/tomas;
After that, dropbox wasn't working anymore on my Mac.
So, I've uninstalled Dropbox app from my Mac and tryed to install it once again, but it is not working because along the new installation the app is searching for the older folder /User/kiki-pessoal/.dropbox instead of the new one and obviously it is not finding.
Then it tells me to contact Dropbox support with the following message:
/var/folders/nn/ glydmg6n7k541jm8mpbjlcc0000gn/T/ dropbox_errorat91owwi.txt

How should I proceed? Thank you so much