RE: I am facing ERR_CACHE_MISS error while accessing directories in Chrome.
I am not familiar with that error. The best I can tell this is an error with Chrome, not Connections.
RE: When in Chrome, the drop down to select a category does not work.
RE: And you can click on the search box, type what you want to search, and hit enter. It will search, but you can’t see what you are typing.
This sounds like a simple CSS conflict where the theme or another plugin has set the form field input text to default to white, globally rather than targeting their own form fields.
RE: Any help regarding the error?
My previous answers are my best guesses … if you can share the link to the directory page I can take a closer look and perhaps more specific advice.
Here are some links which might also be helpful in tracking down the issue.