Use an API without ssl in objective c - objective-c

Question

Here is my code
AFHTTPRequestOperationManager *opManager = [AFHTTPRequestOperationManager manager];
opManager.responseSerializer = [AFJSONResponseSerializer serializer];
[opManager.requestSerializer setValue:#"no-cache" forHTTPHeaderField:#"Cache-Control"];
opManager.securityPolicy.allowInvalidCertificates = NO;
opManager.securityPolicy.validatesCertificateChain = NO;
NSDictionary* parameters = #{#"phone_number":self.phoneNumberTextField.text,
#"password":self.passwordTextField.text};
[opManager POST:#"http://www.example.com:8080/api.php/login"
parameters:parameters
success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(#"Login Response Object %#",responseObject);
}
failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Login2222-2 - %#",error);
}];
Here is my error
Error Domain=NSURLErrorDomain Code=-1200 "An SSL error has occurred
and a secure connection to the server cannot be made."
UserInfo={_kCFStreamErrorCodeKey=-9836,
NSLocalizedRecoverySuggestion=Would you like to connect to the server
anyway?, NSUnderlyingError=0x28185ce40 {Error
Domain=kCFErrorDomainCFNetwork Code=-1200 "An SSL error has occurred
and a secure connection to the server cannot be made."
UserInfo={NSErrorFailingURLStringKey=https://www.example.com:8080/api.php/login,
NSLocalizedRecoverySuggestion=Would you like to connect to the server
anyway?, _kCFNetworkCFStreamSSLErrorOriginalValue=-9836,
_kCFStreamPropertySSLClientCertificateState=0, NSLocalizedDescription=An SSL error has occurred and a secure
connection to the server cannot be made., _kCFStreamErrorDomainKey=3,
NSErrorFailingURLKey=https://www.example.com:8080/api.php/login,
_kCFStreamErrorCodeKey=-9836}}, NSLocalizedDescription=An SSL error has occurred and a secure connection to the server cannot be made.,
NSErrorFailingURLKey=https://www.example.com:8080/api.php/login,
NSErrorFailingURLStringKey=https://www.example.com:8080/api.php/login,
_kCFStreamErrorDomainKey=3}
Normal for the first time login.For the second time, these error is indicated.