I get this then:
FILE NOT FOUND resources/audio/music/the_fold.ogg - null
java.lang.NullPointerException
at resource.media.OggPlayer.run(OggPlayer.java:173)
at java.lang.Thread.run(Thread.java:619)
Loading Sound As OpenAL
When the shadow and the bloom are deactivated, it is playable anew 
Nevertheless, when I set several combo defenses, only one works or when I set a combo defense and a ground unit, only the ground unit works, it is very annoying.