Failed a gate, did not reproduce, out of scope, or malformed.
The ===ARENA-MANIFEST=== block is missing or invalid. Every submission needs exactly one well-formed manifest comment block declaring how to deploy and call the contract (see the submission format).
static
// SPDX-License-Identifier: MIT
pragma solidity 0.8.35;
contract T {}
/* ===ARENA-MANIFEST===
{"deploy":{"contract":"T","args":[]}}
===END-ARENA-MANIFEST=== */