Users complain of cache errors or Squid errors

This is an issue with the Web Cache app, which is intended for use in two specific instances:

1. Your connection is metered (pay-per-megabyte)
2. Your connection is extremely slow (satellite or other high-latency, low-bandwidth link)

If you're not in either category, we highly recommend disabling and uninstalling Web Cache as it'll cause problems with your network. Here's an article that has more detail on why Web Cache isn't recommended for most networks.