Xcode Project Fix Warnings & Error

I've got an Xcode project that has a lot of warnings 150 and 3 errors.

I'm looking to get this one fixed, it was build around 2017 and it just need to be updated so I can put it through again.

*'GKLeaderboardViewControllerDelegate' is deprecated: first deprecated in iOS 7.0 - Use GKGameCenterViewController instead
*Conflicting return type in implementation of 'supportedInterfaceOrientations': 'UIInterfaceOrientationMask' (aka 'enum UIInterfaceOrientationMask') vs 'NSUInteger' (aka 'unsigned long')
*Animations lines: first deprecated in iOS 13.0 - Use the block-based animation API instead
*'SLServiceTypeTwitter' is deprecated: first deprecated in iOS 11.0
*'SLServiceTypeFacebook' is deprecated: first deprecated in iOS 11.0
*'openURL:' is deprecated: first deprecated in iOS 10.0
*Block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior
*Unsupported Configuration: This file is set to build for a version older than the deployment target. Functionality may be limited.

Thank you,

Guil