Adopt for the new runtime

[valentunn]

Hi again, it seems like Westend runtime was updated to version 50, which brought some API-breaking changes. For example, they finally migrated AccountInfo to TripleRefCount

[arjanz]

Yes I am aware of that, I am examining the recent and upcoming changes atm of Polkadot, Kusama, Rococo, Westend etc. Expect fixes for this later today.. Lots of changes incoming :)

[valentunn]

Thanks a lot)