Region not supported - Region: Nepal

Earlier I used Brave and it was supported but now I reinstalled, it says region not supported.

may be nepal comes under the restricted country list of uphold. Please check that list.

Please see the help center article linked below for a list of supported countries for verifying with a custodial provider (Gemini or Uphold). You can still receive ads and earn Rewards if your country is supported for ad campaigns (see brave.com/transparency) but you will not be able to transfer your BAT to an exchange until restrictions are lifted. Hope this helps.