Your framework must include bitcode unfortunately. It is up to the consumer of your framework that must decide whether the final app package should include bitcode or not. If the consumer decides to include bitcode then all frameworks embedded within must also include bitcode. The best thing you can do is the enable it for your framework and allow the consumer to decide.
To enable bitcode select your project in the project navigator (the one with the blue icon) and then select your framework target from the target list. Next go to Build Settings and search for
ENABLE_BITCODE. Lastly make sure that
Enable Bitcode value is
After correcting the situation compile the framework again and distribute it. Let me know if that solves your problem.