Getting error when try to open my device

When i try to work on my phone in ios 13.3.1 it gives an error like this :
Please help me.

dyld: Library not loaded: @rpath/WebRTC.framework/WebRTC

Referenced from: /private/var/containers/Bundle/Application/7AF51EBB-A6ED-4094-8B26-FB447632E9DE/testonlinekocapplication.app/testonlinekocapplication

Reason: no suitable image found. Did find:

/private/var/containers/Bundle/Application/7AF51EBB-A6ED-4094-8B26-FB447632E9DE/testonlinekocapplication.app/Frameworks/WebRTC.framework/WebRTC: code signature invalid for '/private/var/containers/Bundle/Application/7AF51EBB-A6ED-4094-8B26-FB447632E9DE/testonlinekocapplication.app/Frameworks/WebRTC.framework/WebRTC’

/private/var/containers/Bundle/Application/7AF51EBB-A6ED-4094-8B26-FB447632E9DE/testonlinekocapplication.app/Frameworks/WebRTC.framework/WebRTC: code signature invalid for '/private/var/containers/Bundle/Application/7AF51EBB-A6ED-4094-8B26-FB447632E9DE/testonlinekocapplication.app/Frameworks/WebRTC.framework/WebRTC’

/private/var/containers/Bundle/Application/7AF51EBB-A6ED-4094-8B26-FB447632E9DE/testonlinekocapplication.app/Frameworks/WebRTC.framework/WebRTC: stat() failed with errno=1

/private/var/containers/Bundle/Application/7AF51EBB-A6ED-4094-8B26-FB447632E9DE/testonlinekocapplication.app/Frameworks/WebRTC.framework/WebRTC: code signature invalid for '/private/var/containers/Bundle/Application/7AF51EBB-A6ED-4094-8B26-FB447632E9DE/testonlinekocapplication.app/Frameworks/WebRTC.framework/WebRTC’

/private/var/containers/Bundle/Application/7AF51EBB-A6ED-4094-8B26-FB447632E9DE/testonlinekocapplication.app/Frameworks/WebRTC.framework/WebRTC: stat() failed with errno=1