Hi, This error caused by trying to access an old block from a node which does not store this information for long period. All nodes in the network have some default retention for historical data and fetching old blocks requires accessing archive nodes which stores this information for longer periods. We are currently working to dramatically increase the retention for archive nodes and soon you will be able to access old blocks.

Hi, All nodes in the network have some default retention for historical data and fetching old blocks requires accessing archive nodes which stores this information for longer periods. We are currently working to dramatically increase the retention for archive nodes and soon you will be able to access old blocks.