Sorry, but we did not test this script/plugin with the theme. Our policy states that we do not support third party plugins or custom code so unfortunately, we cannot be of any help to you.
We can recommend you to use the W3 Total Cache plugin.
This is the only one plugin to 'speed up' the website we support.
You can see that the first issue is with the JS, but we do not recommend touching it. It may break the theme. Second issue is hosting related so we cannot do anything about it.
Please use google page speed for testing wordpress themes. GTMetrix is not a good testing tool for such heavy themes in a wordpress enviroment with plugins.
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Cheers
Sorry, but we did not test this script/plugin with the theme. Our policy
states that we do not support third party plugins or custom code so
unfortunately, we cannot be of any help to you.