Staking is handled using interface with IERC20, this is not compatible with direct ETH transfers.

The BurnNMR contract has the NMR token address hard-coded and so other tokens are not usable.

Recommendation: Update advertised features to match actual capabilities.

References:

• Advertisement of ability to use ETH: https://github.com/erasureprotocol/erasure-protocol/blob/4a3d98ce023a264a9f3c7ba62ef77a9207bba5fe/README.md#payments-through-any-cryptocurrency
• Token transfer implementation:

  erasure-protocol/contracts/modules/Staking.sol

  Line 27 in 4a3d98c

  require(IERC20(BurnNMR.getToken()).transferFrom(funder, address(this), amountToAdd), "token transfer failed");

• NMR hardcoded:

  erasure-protocol/contracts/modules/BurnNMR.sol

  Line 13 in 4a3d98c

  address private constant _Token = address(0x1776e1F26f98b1A5dF9cD347953a26dd3Cb46671);