java.lang.NoClassDefFoundError: com.easibeacon.protocol.IBeaconProtocol$1
Hmm looks like a class in the native easibeacon library cannot be found.
The native easibeacon library is compiled into the b4a library so in theory must be present.
Can you clean the project and try to compile again?
Does any project that uses the easibeacon library work or do you get this error with all projects that use the easibeacon library?