Can you install the plugin and deactivate each options inside it and activate one by one. If not another thing that you can do is clean the whole w3cache directory with the all files and make a clean and new install of the plugin.
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Can you install the plugin and deactivate each options inside it and activate one by one. If not another thing that you can do is clean the whole w3cache directory with the all files and make a clean and new install of the plugin.