Hi and welcome to the community. 
Not sure what this means… add funds how and where?
To help with your issue per connecting to Uphold, below are two posts that have helped users connect to their Uphold accounts. You might try and see if they work for you.
Cannot Connect Brave Rewards with Uphold Account
I Found Solution on Android Phone to Verify Wallet
Another workaround with screenshots.
If you have never received a payout to your Uphold account, these are some of the things you can check. Before you start, make sure you are updated to the latest Brave version (looks like you are) and the OS of the device you are using is updated to the latest version.
-
Clear history/cache, exit Brave, and reopen. This works for some users.
-
Make sure your account is verified at Uphold. Go to your profile page and there should be a verified date at the bottom.
Example: Screenshot of a Verified Profile at Uphold
Can’t verify and authorize the wallet, can’t connect Brave to Uphold - #2 by Impoiler -
Make sure all your personal information in your Uphold account is accurate and complete. For example, Uphold will verify your account with an incomplete address, but Brave needs your full address, including street number, street, city, etc.
If none of the above works or applies, DM the moderators. In your DM, include a link to this post and your wallet payment id found at brave://rewards-internals. Do not post your wallet id! Also include a screenshot of the panel with the spinning circle.
Mattches and Steeven are the moderators who handle most of the rewards issues.
To send a direct message (DM) to a moderator:
- Click on their icon on the About page then select the Message button in the top right corner or
- You can go to your profile and create a new message in Messages.