Merge pull request #3295 from poanetwork/vb-token-instance-page-fix

Token instance: check if external_url is not null before trimming

CHANGELOG.md

@@ -10,6 +10,7 @@
 - [#3261](https://github.com/poanetwork/blockscout/pull/3261) - Bridged tokens table
 
 ### Fixes
+- [#3295](https://github.com/poanetwork/blockscout/pull/3295) - Token instance: check if external_url is not null before trimming
 - [#3291](https://github.com/poanetwork/blockscout/pull/3291) - Support unlimited number of external rewards in block
 - [#3290](https://github.com/poanetwork/blockscout/pull/3290) - Eliminate protocol Jason.Encoder not implemented for... error
 - [#3284](https://github.com/poanetwork/blockscout/pull/3284) - Fix fetch_coin_balance query: coin balance delta

apps/block_scout_web/lib/block_scout_web/views/tokens/instance/overview_view.ex

@@ -48,7 +48,7 @@ defmodule BlockScoutWeb.Tokens.Instance.OverviewView do
         external_url(nil)
       end
 
-    if String.trim(result) == "", do: external_url(nil), else: result
+    if !result || (result && String.trim(result)) == "", do: external_url(nil), else: result
   end
 
   def total_supply_usd(token) do