I've run TVH server and client on the same machine without any issues. I assume you downloaded TVH from the LE repository?
I would try reinstalling the server and client again.
If you're still having issues, post the URL of dmesg | paste and
Please provide a full debug log.How to post a log (wiki)1. Enable debugging in Settings>System Settings>Logging2. Restart Kodi3. Replicate the problem4. Generate a log URL (do not post/upload logs to the forum)
use "Settings > LibreELEC > System > Paste system logs" or run "pastekodi" over SSH, then post the URL link
use "Settings > LibreELEC > System > Paste system logs" or run "pastekodi" over SSH, then post the URL link