Arduino Uno + Esp8266 Web Server Issue(Code+Diagram) images updated

Hello , i'm trying to make RC Plane with Arduino Uno + Esp8266 esp-01. i was updated firmware of esp to sdk 2.1 and i changed to baud rate 9600 for stable communication with software serial libarary. i'm trying to control servo angle with http requests, but i dont understand whats wrong with my diagram or my code . i attached electronic diagram image and below my project code.

#include <SoftwareSerial.h>
#include <Servo.h>
Servo sg90; 
SoftwareSerial esp(2,3); 

void WebServer(void){
   if(esp.find("+IPD,")){                                         //if incoming data include "+IPD" command enter
      String espRead = esp.readString();  delay(500);             //reading esp response
      
      
      String Header,Content;      
      Header =  "HTTP/1.1 200 OK\r\n";
      Header += "Content-Type: text/html\r\n";
      Header += "Connection: close\r\n";
      //Header += "Refresh: 5\r\n";
      Content += "<head> Hello World </head><body>";
      Content += "<a href=\"?p=45\"><button type='button' style='font-size: -webkit-xxx-large;'>45</button></a>"; 
      Content += "<a href=\"?p=90\"><button type='button' style='font-size: -webkit-xxx-large;'>90</button></a>";      
      Content += "<a href=\"?p=135\"><button type='button' style='font-size: -webkit-xxx-large;'>135</button></a>";
      Content += "<a href=\"?p=180\"><button type='button' style='font-size: -webkit-xxx-large;'>180</button></a></body>";
      Header += "Content-Length: ";
      Header += (int)(Content.length());delay(10);
      Header += "\r\n\r\n";delay(20);

      
      String cipsend = "AT+CIPSEND=";delay(10);
      cipsend +="0";
      cipsend +=",";
      cipsend +=(int)(Header.length()+ Content.length());
      cipsend += "\r\n";delay(20);

      
      esp.print(cipsend);delay(20);
      esp.print(Header);delay(20);
      esp.print(Content);delay(20);
      esp.println("AT+CIPCLOSE=0");delay(200);                      //Connection Close
      
     if(espRead.indexOf(":GET /?p=45")>=0){                         //if request p=45
          sg90.write(45);delay(10);
          Serial.println("45 geldi");delay(20);
     }
     else if(espRead.indexOf(":GET /?p=90")>=0){                    //if request p=90
          sg90.write(90);delay(10);
          Serial.println("90 geldi");delay(20);
     }
     else if(espRead.indexOf(":GET /?p=135")>=0){                   //if request p=135
          sg90.write(135);delay(10);
          Serial.println("135 geldi");delay(20);
     }
     else if(espRead.indexOf(":GET /?pin=180")>=0){                 //if request p=180
          sg90.write(180);delay(10);
          Serial.println("180 geldi");delay(20);     
      }
     else{
          Serial.println("There is no request!");delay(20);             //There is no request! 
     }
     Serial.println(cipsend);delay(100);
    }
}

void SendToEsp(){                                           // reading Serial inputs and sending to esp software serial channel
            char character2;
            String message;
            while(Serial.available()>0){
              character2 = Serial.read();
              
              if(character2 !='\n'){                      //if character not end marker append to message string
                //if(isAscii(character2)){
                  message += character2;
                //}
                delay(10);
              }
              else{                                       // if character is end marker then send message to esp
                esp.println(message);
                Serial.println("Esp outgoing: "+message);  
                message=" ";delay(10);
              }
            }
}
void ReadFromEsp(){
      char character;
      String text;
      while(esp.available()>0){
          Serial.println(esp.readString());
          
          character = esp.read();
          if(character !='\n'){
            delay(50);
            if(isAscii(character)){
              text += character;          
            }
            delay(10);
          }
          else{
            Serial.println(text);
            text=" ";
            delay(10);
          }
        }
}
      
void setup() {
  // put your setup code here, to run once:

  
  Serial.begin(9600);delay(200);                            //Debugging serial port
  Serial.println("Started"); delay(200);
  esp.begin(9600);delay(200);                               // Software Serial port for esp8266
  
  esp.println("AT"); delay(500);                            //ESP8266 check ready.
  while(!esp.find("OK")){
    esp.println("AT");
    Serial.println("ESP Not Found!... Trying again...");
  }
  Serial.println("Found it!");delay(20);
  
  
  esp.println("AT+CWMODE=2");                                 //ESP8266 set ap mode.
  while(!esp.find("OK")){
    esp.println("AT+CWMODE=2");
    Serial.println("ESP not set for ap mode... Trying again...");
  }
  Serial.println("Ap mode has been set.(AT+CWMODE2)");delay(500);
  
  
  esp.println("AT+CIPMUX=1");                                 //ESP8266 Set TCP multi
  while(!esp.find("OK")){
    esp.println("AT+CIPMUX=1");
    Serial.println("Multi setting..(AT+CIPMUX1)");delay(50);
    }
  delay(100);
  Serial.println("Multi has been set.(AT+CIPMUX1)");

  
  esp.println("AT+CIPSERVER=1,80");delay(100);               //Server 80 port openning
   while(!esp.find("OK")){
    delay(12);
    esp.println("AT+CIPSERVER=1,80");
    Serial.println("ESP 80 portunu açamadı... Tekrar deneniyor...AT+CIPSERVER1,80");
  }
  Serial.println("TCP Port ayarlandı. AT+CIPSERVER1,80"); delay(100);
  
  //esp.println("AT+CIPSTATUS");
  //delay(1500);
  //esp.println("AT+CIFSR?");
  //delay(1500);
  //esp.println("AT+CWLIF?");
  //delay(1500);
  //esp.println("AT+UART_DEF?");
  //delay(1500);
  sg90.attach(7);
}
void loop() {
  // put your main code here, to run repeatedly:
  
  SendToEsp();
  ReadFromEsp();
  WebServer();
}





The voltage divider on the ESP's RX line is installed wrong.

v div wrong.jpg

This is how it should be:
v div right.jpg

Thanks for your attention,

I tried your voltage divider diagram with 10k and 20k resistor but i cannot even communicate with esp so i've installed back 1k and 2k resistors as you shown and i can send at command and esp response OK. However when i'm trying to access webserver on 192.168.4.1 esp response error but i dont know why ?




any idea?