ssl_write doesn't work if there are 2 write one after the other in c programm

I have a programm that use ssl_write , but when i try to do send 2 ssl_write one after the other , the first one works the second one not and return me segmentation fault , how i can sent multiple ssl_write to the same server one after the other ?

 int sock;
    struct sockaddr_in sockaddr;
    struct hostent *host; /* Host information. */
    sock = socket(AF_INET, /* IPV4 protocol. */
                  SOCK_STREAM, /* TCP socket. */
                  0); /* O for socket() function choose the correct protocol based on the socket type. */
    printf("\n print\n");
    if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
        printf("\n Socket creation error \n");
        return 0;
    }

    if((host = gethostbyname("192.168.0.100")) == NULL) {
        close(sock);
        printf("\n errore hostname\n");
        return -1;
    }
    printf("\n print1\n");
    /* zero buffer */
    memset(&sockaddr, 0, sizeof(sockaddr));
    sockaddr.sin_family = AF_INET;
    memcpy(&sockaddr.sin_addr,
           host -> h_addr,
           host -> h_length );
    sockaddr.sin_port = htons(443);
    // first connect to the remote as usual, but use the port 443 instead of 80

    if(connect(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))==-1){
        printf("\n ERRORE connect to socket \n");
    }


// initialize OpenSSL - do this once and stash ssl_ctx in a global var
    SSL_load_error_strings();
    SSL_library_init ();
    SSL_CTX *ssl_ctx = SSL_CTX_new (SSLv23_client_method ());

// create an SSL connection and attach it to the socket
    SSL *conn = SSL_new(ssl_ctx);
    SSL_set_fd(conn, sock);
    printf("\n print2\n");
// perform the SSL/TLS handshake with the server - when on the
// server side, this would use SSL_accept()
    int err = SSL_connect(conn);
    printf("\n print3\n");
    if (err != 1) {
        printf("\n errore connessione socketssl\n");
    }        
char sendmessage[395];
        
        sprintf(sendmessage," hello:%s","hello");
        SSL_write(conn, sendmessage, strlen(sendmessage) );
        sprintf(sendmessage,"message from:%s n:%d","alex",5);
        printf("ssl write ret %d\n",SSL_write(conn, sendmessage, strlen(sendmessage) ));