The newsletter plugin need some memory. Probably if you add another big plugin you will get the same problem. So if your blog need all the plugins you have installed but you cannot raise the memory, yes, start a refund ticket and use Newsletter basic version. Removing the extension you’ll use less memory. Probably if another plugin will be installed some other things will raise an out of memory error.
I cannot do much in this case. Let me know the order number in my private email so i can start a refund (stefano@satollo.net).
