Incorect response from blockpi api

[Northa]

1. Noticed that sometimes response from the api returns outdated data. For example

klay_getBalance endpoint. To simulate just send some coins from your wallet and constantly query latest balance

{'jsonrpc': '2.0', 'id': 1, 'result': '0x608de4f743a18c000'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x608de4f743a18c000'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x608cba89b5906a000'} <-- balance changed
{'jsonrpc': '2.0', 'id': 1, 'result': '0x608cba89b5906a000'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x608cba89b5906a000'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x608de4f743a18c000'} <-- old balance 
{'jsonrpc': '2.0', 'id': 1, 'result': '0x608cba89b5906a000'}

klay_blockNumber endpoint

{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff610'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff610'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff611'} <-- new block
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff611'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff611'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff610'} <-- old block
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff611'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff611'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff613'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff613'}
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff611'} <-- same thing
{'jsonrpc': '2.0', 'id': 1, 'result': '0x5bff613'}

not tested, but I think the same thing happens at other endpoints as well

2. Erros i've met while testing blockpi api:

{"error":{"code":-32000,"message":""no sources available: decoder.SyntaxError{Pos:0, Src:\"\", Code:0x1, Msg:\"\"}""}}

{"jsonrpc":"2.0","id":null,"error":{"code":-32000,"message":"hypernode not found"}}

Update 24 jul:
{'error': {'code': -32000, 'message': 'Too Many Requests'}}