Getting error while connecting wallet to Brave Rewards

Briefly describe your issue: I have tried to add my phantom wallet to brave reward to receive rewards to the wallet. During connection the GAS fees is deducted but while signing the message it shows something is wrong, i have attached screen shot of that.

What Operating System and Brave version are you using?
I am using windows 11 and brave version is 1.81.135

Who is your verified custodian or self-custody? (Uphold/Gemini/bitFlyer/Solana)
Solana Self-custody

Are you in a supported region? (see here for list of supported regions)
Yes, India

Are you using a previously connected Rewards profile? Can you try resetting to resolve the matter?

https://support.brave.app/hc/en-us/articles/10007969237901-Resetting-Brave-Rewards