Documents in Queue not being Indexed

Hi,

For some reason the documents in the queue are not being indexed and are stuck there.

How can I find out the reason this is happening and how to fix this, I did have a look at the error logs “voce-error-log” but there are no real indications.

Tried resetting lift, re-indexing but nothing works.

Hope to receive a reply sooner rather than later.

By the way, what does “Override Search” mean? Wish there would be better documentation for this plugin.

https://ww.wp.xz.cn/plugins/lift-search/