If I look to your JAVA_OPTS settings, I found that '-Xms128m-Xmx1024m' is without a space, could you correct this!
If you deploy more war files the server might use more memory, MaxPermSize is additional to the 1024m Heap size and this might produce the error.
You should post a bit more information about your memory (without and with the deployed additional war files).
You can use <JAVA>/bin/jstat -gc to view the actual memory sizes.
If the JVM could not get more memory from the system increasing of RAM might help, maybe you can check it before if you stop other application and services.