Metamask-extension: MetaMask - RPC Error: header not found

[Araton95]

I don't launched a project for a 5 days and everything works fine. But now the calls like web3.eth.getBalance or contract methods returns:

{code: -32000, message: "header not found"}

Does anything changed during this period, what the header means? Will appreciate your help, thanks in advance.

[tmashuang]

Please provide additional information that could help reproduce your issue. For example code snippets, browser/OS versions, and console/network logs could help explain your issue.

[Gudahtt]

I was able to reproduce this bug. It appears to fail intermittently. This us to a bug with Infura (apparently related to load balancing) - they have a fix in development, but it's still broken in prod at the moment.

In the meantime I'd suggest retrying any requests that fail with this error

[owocki]

im also seeing this issue today. was there ever another ticket created with infura for this?

[peculiarity]

This issue has been causing us some trouble for the past couple of days.
Can someone prioritize it ?

[x5engine]

what is happening?
seems this error code -32000 is

            "-32000": {
                standard: "EIP 1474",
                message: "Invalid input."
            },

more about the error
https://github.com/ethereum/EIPs/issues/136

code description meaning
-32000 INVALID_VALUE parameter contains invalid value
INVALID_VALUE 0 invalid input, e.g. missing mandatory input

Maybe something about the new version of metamask dropping support for web3

related https://github.com/MetaMask/metamask-extension/issues/7708

Do you get this a lot? @owocki @peculiarity

[x5engine]

Solved it! I was on mainnet and the web3 was set to rinkeby instead so it gave this error!

[crazyrabbitLTC]

@x5engine Could you explain a bit more what you mean by solved?

I am also getting the same error, It would be great if there was some sort of explanation in the error of what is happening and what the error is.

[b-pmcg]

@crazyrabbitLTC not solved. It's still happening with regularity on mainnet. Appears to be a bug with infura as @Gudahtt mentioned, but I don't know more than that.

[charleenfei]

any update on this issue? We are also experiencing this bug regularly.

[x5engine]

the bug happens when you use something not on mainnet To be honest....

[01fbk]

The bug is still happening. Working on Ropsten testnet.
Haven't tested on main net, but will do and let you guys know.

[x5engine]

@01fbk let me know! I am waiting!

[karankiri]

FYI for anyone facing the same issue. I was facing the similar issue on ropsten network I changed my network to mainnet and back to ropsten everything started to work fine.

[wjmelements]

This error seems to mean that the specified block number is not on geth.

[DannyDelott]

@karankiri this solved it for me, thank you. I was getting this error when connected to a localnet and needed to switch to mainnet and back for this error to stop throwing.

[defidex]

I am getting this error. Does anybody have a solution. Thanks in advance.

Error to read Metamask ERC balance: {"code":-32000,"message":"header not found"}