Some apps from App Store may be difficult to remove. If you are jailbroken then you need to wipe it if you can and return to legal usage.
Start by powering off and back on.
If no better you might first want to try a backup, restore, and restore from backup. The danger is restoring any unwanted apps,
Backup and restore
How to back up your iPhone, iPad, and iPod touch
Restore your iPhone, iPad, or iPod to factory settings
restore from backup.
Personally (and specially if you are jailbroken) I would safeguard my photos and data by importing to my computer then wipe the phone and start again. Settings, General, Reset Erase all content and settings.
That is an extreme measure and you will lose all your social media history,’