"NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802)" Swift 3 Firebase - ios

Question

I'm making an app with Firebase. I was running my app when all of a sudden, I got this error:
And I got the error "NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9802)".
And YES, I've tried ALL of those info.plist things where it tells you to add arbitrary loads. I've tried everything out there.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
<key>NSExceptionDomains</key>
<dict>
<key>https://piigeon-7bf2d.firebaseio.com/</key>
<dict>
<key>NSIncludesSubdomains</key>
<true/>
<key>NSAllowsArbitraryLoads</key>
<true/>
<key>NSTemporaryExceptionMinimumTLSVersion</key>
<string>TLSv1.1</string>
<key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
<true/>
</dict>
</dict>
</dict>
<key>UIAppFonts</key>
<array>
<string>apple-sd-gothic-neo-thin-5989d270024be</string>
</array>
<key>CFBundleDevelopmentRegion</key>
<string>en</string>
<key>CFBundleDisplayName</key>
<string>iMedicin</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>LSApplicationCategoryType</key>
<string></string>
<key>LSRequiresIPhoneOS</key>
<true/>
<key>NSPhotoLibraryUsageDescription</key>
<string>We would like to access your photos to provide you with an amazing app experience.</string>
<key>UILaunchStoryboardName</key>
<string>LaunchScreen</string>
<key>UIRequiredDeviceCapabilities</key>
<array>
<string>armv7</string>
</array>
<key>UIStatusBarStyle</key>
<string>UIStatusBarStyleLightContent</string>
<key>UISupportedInterfaceOrientations</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
</array>
</dict>
</plist>g>
<key>CFBundleVersion</key>
<string>1</string>
<key>LSApplicationCategoryType</key>
<string></string>
<key>LSRequiresIPhoneOS</key>
<true/>
<key>NSPhotoLibraryUsageDescription</key>
<string>We would like to access your photos to provide you with an amazing app experience.</string>
<key>UILaunchStoryboardName</key>
<string>LaunchScreen</string>
<key>UIRequiredDeviceCapabilities</key>
<array>
<string>armv7</string>
</array>
<key>UIStatusBarStyle</key>
<string>UIStatusBarStyleLightContent</string>
<key>UISupportedInterfaceOrientations</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
</array>
</dict>
</plist>
That's my info.plist.
Can someone PLEASE help me? Thank you.