Sorry to hear this persists Roey!
At this point, I'd also check for pending updates of the device's OS (iOS latest version is 13.1.2 - which one are you running)?
In addition, note that it's possible the error you're receiving is an issue with your operating system's network configuration.
You can reset your device’s Network Connection Settings to resolve any possible Apple-related conflicts. Here's how:
Go to the Home screen then tap on Settings.
Scroll down to and tap on Reset.
Choose the option to Reset network settings.
If prompted, enter your passcode to proceed.
Then tap the option to confirm that you want to reset network settings on your iPhone.
Please note that you will need to re-enter your WiFi password after you do this.
Keep us posted!
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