httpClient.begin(url) reurn -1 and -11

Hi!
ESP8266 (ESP12)
A remote server is available. Through the browser, I get the contents of the file txt.
But my function returns -1 and -11.

#define OTA_HOST        "updates.soi-tech.com"
#define DEVICE_MODEL    "WalkingLight"

bool otaAvailable() {
    HTTPClient httpClient;
    httpClient.useHTTP10(true);
    httpClient.setTimeout(5000);
    char url[65];
    sprintf( url, "http://%s/%s.txt", OTA_HOST, DEVICE_MODEL );
    httpClient.begin(url);
Serial.println(url);
    int code = httpClient.GET();
Serial.println(code);
    if (code != HTTP_CODE_OK) {
          httpClient.end();
          return false;
    }
    const char *response = httpClient.getString().c_str();
    httpClient.end();
Serial.println(response);
    return true;
}

I tried http and https.

First run function:

http://updates.soi-tech.com/WalkingLight.txt␍␊
200␍␊
1 F52187696F59EE5A1D85285D0F0B62A8 29131F8A6A853402AAB5433D521B1EC0 EA9BF8DE9BF008DFC94ECDE7260F4409␍␊

The second and subsequent launches:

http://updates.soi-tech.com/WalkingLight.txt␍␊
-11␍␊

http://updates.soi-tech.com/WalkingLight.txt␍␊
-11␍␊

I am use library ESPAsyncWebServer, past first run function the server stops loading, the Web interface does not load.
What could it be?

[devyte]

@MCMeGa No basic info, no IDE settings, example sketch is incomplete.
The httpClient is part of this repo, the meaning of the return values can be found here:
#define HTTPC_ERROR_CONNECTION_REFUSED (-1)
...
#define HTTPC_ERROR_READ_TIMEOUT (-11)

The ESPAsyncWebServer is not hosted here.

I don't see anything obvious with the httpClient code. I suspect the problem is on the server side, e.g.: an out of mem issue, or mem corruption, but that is just a guess.

In any case, this is not the right place to request help with your particular project. Please discuss on a community forum. If you narrow the problem down and find an issue with the core hosted in this repo, please open a new issue, and provide the requested details.
Closing per #3655 .