TypeError: WebAssembly.instantiate(): Import #87 module="GOT.func" error: module is not an object or function

Any idea on this issue?
code
``` javascript
async function loadAvutil(imports) {
const fetchPromise = fetch('./ffmpeg/lib/libavutil.wasm');
// const { module, instance } = await WebAssembly.instantiateStreaming(fetchPromise);
// To create a new instance later:
// const otherInstance = await WebAssembly.instantiate(module);

imports = imports || {};
imports.env = imports.env || {};
imports.env.memoryBase = imports.env.memoryBase || 0;
imports.env.tableBase = imports.env.tableBase || 0;
if (!imports.env.memory) {
imports.env.memory = new WebAssembly.Memory({ initial: 256 });
}
if (!imports.env.table) {
imports.env.table = new WebAssembly.Table({ initial: 0, element: 'anyfunc' });
}

const { instance } = await WebAssembly.instantiateStreaming(fetchPromise, imports);

//const result = instance.exports.FetchffmpegWrapper();
//console.log(result);
};
```