“Allowed memory size” is not up to the theme, it is a server setting. I suppose there is a problem with your server settings, because we tried it no on different server again and cannot reproduce the problem (both errors).
We test it now again on another server, from a shared hosting company, because we use always our own server with perfect server settings. Shared hosting use often bad settings / very restricted settings, so maybe that’s the problem. But let us test that, I’m sure we will find the problem.