The keyboard doesn't work done with inputs

when i click on the form it opens me the wrong keyboard text and not number,
can anyone help me? Thanks in advance.

thanks for help

framework : angular
ionic version : ionic 5
native : capacitor
version ios : 13.6
device : iphone 11 pro

Related code:

<form [formGroup]="form">
        <ion-grid>
          <ion-row class="ion-background-form-login">
            <ion-col [size]="6">
              <ion-item lines="none" no-padding>
                <!-- <ion-label position="stacked">Username</ion-label> -->
                <ion-input
                  formControlName="first_name"
                  type="text"
                  placeholder="..."
                ></ion-input>
              </ion-item>
            </ion-col>
          </ion-row>
        </ion-grid>
</form>

Ionic:

Ionic CLI : 6.9.1
Ionic Framework : @ionic/angular 5.1.1
@angular-devkit/build-angular : 0.901.7
@angular-devkit/schematics : 9.1.6
@angular/cli : 9.1.6
@ionic/angular-toolkit : 2.2.0

Capacitor:

Capacitor CLI : 2.1.0
@capacitor/core : 2.1.0

Cordova:

Cordova CLI : 9.0.0 (cordova-lib@9.0.1)
Cordova Platforms : not available
Cordova Plugins : no whitelisted plugins (1 plugins total)

Utility:

cordova-res : not installed
native-run : 0.3.0

System:

NodeJS : v10.16.2
npm : 6.14.8