can not install a plugin

Hi Al
I am trying to install a app I just brought and when I click the “Install to Engine” button and select the UE version then nothing happens.

I am trying to install Ascent Combat Framework.
Below is the log.

[2020.07.11-12.34.37:152][889]LogOnlineEula: Display: OSS: Starting EulaService::GetAgreement request for key ue_games user
[2020.07.11-12.34.37:442][906]LogOnlineEula: Display: OSS: EulaService::GetAgreement request complete. url=https://eulatracking-public-service-prod06.ol.epicgames.com/eulatracking/api/public/agreements/ue_games/account/?locale=en code=204 key=ue_games responselength=0
[2020.07.11-12.34.37:442][906]LogOnlineEula: Display: OSS: EulaService::GetAgreement user has already accepted the agreement ue_games (no content)
[2020.07.11-12.34.37:458][907]LogOnlineEula: Display: OSS: Starting EulaService::GetAgreement request for key ue_non_games user
[2020.07.11-12.34.37:819][928]LogOnlineEula: Display: OSS: EulaService::GetAgreement request complete. url=https://eulatracking-public-service-prod06.ol.epicgames.com/eulatracking/api/public/agreements/ue_non_games/account/?locale=en code=204 key=ue_non_games responselength=0
[2020.07.11-12.34.37:819][928]LogOnlineEula: Display: OSS: EulaService::GetAgreement user has already accepted the agreement ue_non_games (no content)
[2020.07.11-12.34.37:836][929]LogOnlineEula: Display: OSS: Starting EulaService::GetAgreement request for key ue_studio user
[2020.07.11-12.34.38:132][946]LogOnlineEula: Display: OSS: EulaService::GetAgreement request complete. url=https://eulatracking-public-service-prod06.ol.epicgames.com/eulatracking/api/public/agreements/ue_studio/account/0ee3089d448449b197c3895b065ee663?locale=en code=200 key=ue_studio responselength=51863
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: AppId is: AscentCombatFramework_4.25
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: FAppInstallRequestConfig:
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .SourcePath:
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .DestinationPath: /Users/Shared/Epic Games/UE_4.25
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .SourceProjectName:
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .OverrideEngineAssociation:
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .DestinationProjectName:
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .bIsExecutable: true
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .bIsApplication: false
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .bIsEngine: false
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .bRequiresAuthExchangeCode: false
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .bIsCodeProject: false
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .bDownloadLatest: false
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .bOverwriteExisting: false
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .bCreateShortcut: true
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: .MainAppName:
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: Found 0 DLC to INSTALL
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: Found 0 DLC to UNINSTALL
[2020.07.11-12.34.38:146][947]LogCommunityPortalAppManager: RequestAppInstall: Found 0 DLC to UPDATE