Fix production problem with XP Filter

[nomadbitcoin]

url: https://w3d-development-web3task.vercel.app/tasks?Reward=XP

[Guboehm]

@nomadbitcoin I conducted the analysis and determined that the likely cause of the problem is the absence of the Reward field in the document task. However, I performed tests in the development version, attempting to simulate the same scenario, and the problem did not occur.

Can we deploy a new version on Vercel and perform the tests again?

Evidence: