bug: cannot get firsts blocks information

[selankon]

Describe the bug

On STG I cannot retrieve the information of firsts blocks, for example

➜ curl 'https://api-stg.vocdoni.net/v2/chain/blocks/1' -s | jq 
{
  "error": "block not found",
  "code": 4008
}

But yes for latests block

➜ curl 'https://api-stg.vocdoni.net/v2/chain/blocks/1119027' -s | jq

Dev seems working