TypeError: provider.send is not a function

[shivamklr]

I get an error for withdrawExit method. I would really appreciate if you could look into the code once and point me in the right direction.
TypeError: provider.send is not a function at EtherWeb3Client.module.exports../src/ethers/web3_client.ts.EtherWeb3Client.getBlockWithTransaction (/home/..../node_modules/@maticnetwork/maticjs-ethers/dist/webpack:/matic-ethers/src/ethers/web3_client.ts:38:25) at /home/..../node_modules/@maticnetwork/maticjs/dist/webpack:/Matic/src/pos/exit_util.ts:202:35 at processTicksAndRejections (node:internal/process/task_queues:96:5)

Link to Code
npm i to install
npm run start:dev to start the server

[shivamklr]

I wish to fix this issue. @ujjwalgupta94 @ujjwalguptaofficial Can we contribute to this project?

[ujjwalgupta94]

yeah sure @shivamklr , please do.

[shivamklr]

@ujjwalgupta94 I see that the project does not support FallbackProvider by ethers. Any plans to add support for that?
I figured out the issue, I created an ethers Wallet instance with the Fallback provider. However, on further investigation, I saw that the EtherWeb3Client only support JsonRPCProvider.

[ujjwalgupta94]

can you point out to some documentation, when do we need FallbackProvider @shivamklr ?