PHP error: plugin trying to locate the config file

I’m getting this PHP error:

[ERROR] : /home/jasoncas/public_html/store/wp-content/wpo-cache/config/config-www.DomainName.com.php is not present

I checked the folder path on the server and I can see a very similar file located in the folder:
config-www.domainname.com.php

as you can see, its as if the file which was created by the plugin is all lower-case, but the system is looking for the Title-Case version of the file. just as a sanity check, i copied the file and made the Title-case version of the file and of course the error went away.

but this isn’t a longterm solution because this Plugin won’t know to update the TitleCase version of this file.

I’m hunting around my WordPress settings to see where it picked up the TitleCase version of my domain name. If I can locate it, then I can set it to lowercase. Or maybe there is another solution to this from within the plugin itself?

This error is occurring every time any page on the site loads. So if there’s 1000 hits the website per day, that’s 7000 errors per week and the error files get huge.

The plugin seems to be working fine despite this issue. Although I can’t be certain, because I don’t use this plugin on any other website so I can’t say for sure if its truly working 100%.