Random error during function execution: "Error: fetch failed"

    at Client.call (/usr/local/server/src/function/node_modules/node-appwrite/lib/client.js:195:15)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async Databases.listDocuments (/usr/local/server/src/function/node_modules/node-appwrite/lib/services/databases.js:1658:16)
    at async Module.default (file:///usr/local/server/src/function/src/index.js:42:35)
    at async execute (/usr/local/server/src/server.js:208:16)
    at async action (/usr/local/server/src/server.js:225:7)
    at async /usr/local/server/src/server.js:14:5```

Running the function again makes it time out:

```Synchronous function execution timed out. Use asynchronous execution instead, or ensure the execution duration doesn't exceed 30 seconds.
Error Code: 408```

The line that is referred to in the exception:

```database.listDocuments('5445545454454545', '3298329823923', [Query.equal('$id', user_id),]);```

This error rarely occurs. But when it does, it happens randomly and at random parts of the code. This potentially causes inconsistencies in my database. Because the function basically errors out in the middle of an operation and it's unpredictable when/where it happens.

Extra information: I don't use a custom domain or anything and I've never added/deleted/changed anything there. It's the default configuration.

Any idea what causes this problem?