Firewall is a tool offered by 1Blocker that can take your protection to the next level by blocking trackers in all apps you run on your mobile device.
However, some apps rely on trackers so much that they just stop working correctly if they fail to run a tracker. In such cases, you may consider disabling Firewall temporarily to restore the app's functionality.
Gladly, you can do it without launching Firewall by creating a shortcut in the iOS Shortcuts app and adding it to your Home Screen or activating it via Siri.
Since it's a default iOS app, most probably, it's already installed on your mobile device, but you can also download it from the App Store anytime.
More information about Apple's Shortcuts: Using Shortcuts App with Firewall
How to create a new shortcut:
Launch the Shortcuts app
Open the 'All Shortcuts' section
Tap + at the upper-right corner
Tap 'Add Action'
Find 1Blocker in the list of apps
Choose from the available actions:
Pause Firewall
Set Firewall
Customize the parameter:
Pause for 5 or 30 minutes
Turn Off or On
Toggle
Tap (i) at the bottom to add the shortcut to Home Screen or Share Sheet
Tap Done
Tapping the shortcut now will immediately trigger the corresponding task.
By the way, the shortcut will also appear in Siri, Search, and Widgets.
You can create as many quick actions as you want to pause, enable or disable Firewall whenever you need.