Publishing ios app to app store connect (ERROR ITMS-90668)

I got framework MQTTClient , I can run my app on simulator and iphone 6s device without any problems.
When I want to upload to app store connect I have this error (using Transporter application) :
ERROR ITMS-90668: “Invalid Bundle Executable. The executable file ‘reqnet.sterowanie.app/Frameworks/MQTTClient.framework/MQTTClient’ contains incomplete bitcode. To compile binaries with complete bitcode, open Xcode and choose Archive in the Product menu.”

Can someone help me with this error ??
Mateusz

I made for MQTTClient framework archive and get from this place framework and import it to my project. Now I uploaded my app in app store connect without errors using Transporter …
Best regards
Mateusz

what’s MQTTClient.framework? that’s not ours. Was it built with bitcode?

It’s not yours. I opened Xcode and choose Archive in the Product menu and use framework from this place - I uploaded it with success.