Prevent execution to stop when pair that doesn't exist encountered

[iVoider]

This happens with lots of contracts on all chains like: 0xFFE811714ab35360b67eE195acE7C10D93f89D8C (BSC).
thread 'main' panicked at 'called Result::unwrap()on anErrvalue: Error("missing fielddata", line: 1, column: 234)', /ityfuzz/src/evm/onchain/endpoints.rs:734:69

I had tried to use latest blocks avaliable on api, but problem remains.

Can we just omit such pair like this?
https://github.com/iVoider/ityfuzz/tree/pair-fix

[iVoider]

Wrapping is not enough, I guess pair oracle should be turned off in case if pair list is empty.
Otherwise pop from empty list happens here in some contracts:
endpoints.rs 948:

let mut peg_info = self
            .get_pair_pegged(token, network, block)
            .get(0)
            .unwrap()
            .clone();

[rappie]

Are you sure this isn't just this problem?:

#64 (comment)

[iVoider]

Are you sure this isn't just this problem?:

#64 (comment)

No, this occurs even on blocks synced by graphapi. And my little fix helps in 90% such cases, as some pairs exists for such contracts.

[ByteSecurity]

Hey bro, give this PR a try and see if it can solve the problem.#110

[iVoider]

Hey bro, give this PR a try and see if it can solve the problem.#110

Nope. See another example, when it fails with original missing data exception.
/ityfuzz/cli/target/release/cli -c BSC --onchain --onchain-block-number 29693964 -f -i --selfdestruct-oracle -p --run-forever --target 0x9e9b768174ef24233bf8ac2f4131f10ff5e72dee

[ByteSecurity]

fix #110

The reason for this error is that graphapi returned a value with "null", which caused serde_json to be unable to parse it.

The same question arises in
invalid type: null
Don't show null deps

Thanks a lot