Since this Exchange will not help me with a 14.04 bug, where can I go to ask the community for support on 14.04?
You can ask about any Linux system on Unix & Linux or even on Super User. However, no matter where you ask, if the issue is caused by the fact that you are using a no longer supported system, people will be suggesting you just update.
Anyway, feel free to ask on either of those two sites. If there's a workaround, they may be able to suggest it.
One option would be to pay Canonical for extended support. This is almost certainly not cost effective for a single user system (it's intended for business users who may have a large installed base and find it more economical to pay for support than to immediately upgrade thousands of machines).
Otherwise, we can help very directly with bringing your system up to 16.04, 18.04, or 19.04 (currently supported versions).
Community support for 14.04 LTS ended on April 25, 2019. At the stroke of midnight, poof, the carriage turned back into a pumpkin. There's no grey area about when 14.04 was supported vs. not-supported.
After the end of community support, your only option for 14.04 support is paid Extended Security Maintenance (ESM) from Canonical. There is no other alternative for continued 14.04 support.
You are welcome to file bugs against 14.04 packages after the end of community support, but you must pay for ESM to receive the bugfixes through the Ubuntu repositories.