Instant Run Is Missing in Android Studio 3.5

I want to disable instant run but the menu point is not there. I know where the instant run should be, but it is completely missing. I don't know why. I just upgraded to Android Studio 3.5 but I get an error when using AsyncTask and I know that the problem can be solved when disabling instant run, but I can't.

See the screenshot for better understanding

This is my gradle (app)

    apply plugin: 'com.android.application'


android {
    compileSdkVersion 29
    buildToolsVersion "29.0.0"
    defaultConfig {
        applicationId "com.project.myapp"
        minSdkVersion 21
        targetSdkVersion 29
        versionCode 13
        versionName "1.1"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }
    buildTypes {
        debug {

            resValue "string", "google_maps_api_key", GoogleMapDebug
        }

        release {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'


        }
           }

    sourceSets { main { assets.srcDirs = ['src/main/assets', 'src/main/asset/'] } }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })

    implementation 'com.google.android.material:material:1.0.0'
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'com.google.android.gms:play-services-location:12.0.1'
    implementation 'com.google.android.gms:play-services-maps:12.0.1'


    testImplementation 'junit:junit:4.12'
}


apply plugin: 'com.google.gms.google-services'