Good day to all!

I downloaded the latest version of XMrig (https://github.com/xmrig/xmrig/releases) I installed the configuration file (config.json), run the miner and the low difficulty share error.
Here's what's in the configuration file (config.json):

{...
    "pools": [
        {
            "url": "test.irdpool.fr:1111", // URL of mining server
            "user": "ir2EECF4DBG3qtxW9wj37PRahaU6pvBk9WxtUhuDJpQfGP3j9U38c8uYRqCH5wubU6auGr7zUB39PYB qx2HTcFSK1CgTtbhjA",           // username for mining server
            "pass": "x",                     // password for mining server
            "keepalive": true,               // send keepalived for prevent timeout (need pool support)
            "nicehash": false,               // enable nicehash/xmrig-proxy support
            "variant": -1                    // algorithm PoW variant
        }
    ],
...
}