Firebase and Adjust are used together, Firebase Analytics cannot send custom events. project Podfile:

source '/'
source ''

platform :ios, '13.0'

target 'UnityFramework' do
  pod 'Adjust', '5.0.1'
  pod 'FBSDKCoreKit', '~> 17.0.1'
  pod 'FBSDKCoreKit_Basics', '~> 17.0.1'
  pod 'FBSDKGamingServicesKit', '~> 17.0.1'
  pod 'FBSDKLoginKit', '~> 17.0.1'
  pod 'FBSDKShareKit', '~> 17.0.1'
  pod 'Firebase/Analytics', '11.6.0'
  pod 'Firebase/Auth', '11.6.0'
  pod 'Firebase/Core', '11.6.0'
  pod 'Firebase/Crashlytics', '11.6.0'
  pod 'Firebase/Messaging', '11.6.0'
  pod 'Firebase/RemoteConfig', '11.6.0'
  pod 'Google-Mobile-Ads-SDK', '~> 11.13.0'
  pod 'GoogleSignIn', '>= 4.0.2'
  pod 'GoogleUserMessagingPlatform', '2.7.0'
end
target 'Unity-iPhone' do
end
use_frameworks!

log info: "objc[22132]: Class FIRAnalytics is implemented in both /private/var/containers/Bundle/Application/8009A069-0DC8-4B85-A857-D5A3F17E5611/OceanMatchWorld.app/OceanMatchWorld (0x104d34698) and /private/var/containers/Bundle/Application/8009A069-0DC8-4B85-A857-D5A3F17E5611/OceanMatchWorld.app/Frameworks/UnityFramework.framework/UnityFramework (0x1213613e8). One of the two will be used. Which one is undefined."