Merge pull request #4308 from blockscout/vb-fix-verification-options-page-internal-server-error

Fix internal server error on contract verification options page

CHANGELOG.md

@@ -10,6 +10,7 @@
 - [#4067](https://github.com/blockscout/blockscout/pull/4067) - Display LP tokens USD value and custom metadata in tokens dropdown at address page
 
 ### Fixes
+- [#4308](https://github.com/blockscout/blockscout/pull/4308) - Fix internal server error on contract verification options page
 - [#4307](https://github.com/blockscout/blockscout/pull/4307) - Fix for composing IPFS URLs for NFTs images
 - [#4306](https://github.com/blockscout/blockscout/pull/4306) - Check token instance images MIME types
 - [#4295](https://github.com/blockscout/blockscout/pull/4295) - Mobile view fix: transaction tile tx hash overflow

apps/explorer/lib/explorer/chain.ex

@@ -3693,14 +3693,20 @@ defmodule Explorer.Chain do
     end
   end
 
-  def smart_contract_verified?(address_hash) do
-    query =
-      from(
-        smart_contract in SmartContract,
-        where: smart_contract.address_hash == ^address_hash
-      )
+  def smart_contract_verified?(address_hash_str) do
+    case string_to_address_hash(address_hash_str) do
+      {:ok, address_hash} ->
+        query =
+          from(
+            smart_contract in SmartContract,
+            where: smart_contract.address_hash == ^address_hash
+          )
+
+        if Repo.one(query), do: true, else: false
 
-    if Repo.one(query), do: true, else: false
+      _ ->
+        false
+    end
   end
 
   defp fetch_transactions(paging_options \\ nil) do