1.
Use the App Library to search the Safari app, see -> Organize the Home Screen and App Library on your iPhone
Organize the Home Screen and App Library on your iPhone - Apple Support
- If you have find the app, tap & hold on the app, then drag to the Home screen & drop it.
If Safari is not in App Library, download again, see:
https://apps.apple.com/us/app/safari/id1146562112
Or download from the App Store.
2.
Clear the history and cookies from Safari on your iPhone, iPad, or iPod touch
Clear the history and cookies from Safari on your iPhone, iPad, or iPod touch - Apple Support
Browsing through https
3.
it is saying the time is 5:47 am but the time is 8:48am
Check -> Change the date and time on iPhone
Change the date and time on iPhone – Apple Support (UK)
4.
Check list:
To keep your Apple ID account secure, see the following Apple articles:
If you think your Apple ID has been compromised
If you think your Apple ID has been compromised - Apple Support
See who has access to your device or accounts
See who has access to your iPhone or iPad – Apple Support (UK)
Delete suspicious content from your devices
Delete suspicious content from your devices – Apple Support (UK)
Check your Apple ID device list to see where you're signed in
Check your Apple ID device list to find where you're signed in - Apple Support
- if you see devices that don't belong to you, delete from your account.
Personal Safety User Guide
Personal Safety User Guide – Apple Support (UK)
Manage and use your Apple ID
Manage and use your Apple ID – Apple Support (UK)
(if you haven't already done this) Two-factor authentication for Apple ID -> Two-factor authentication for Apple ID - Apple Support
Recognize and avoid phishing messages, phony support calls, and other scams
Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support
Phony "tech support" / "ransomware" popups and web pages
Phony "tech support" / "ransomware" popup… - Apple Community
Never jailbroken your iPhone.
