constant SQLite database errors

[Z-Beeblebrox1978]

I am running following setup:
Raspberry Pi 5, 6.12.75+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.12.75-1+rpt1 (2026-03-11) aarch64
Pi-Hole Core [v6.4] FTL [v6.5] Web interface [v6.4.1]

Pi-Hole experiencing following issue:

1. SQLite:
   2026-03-29 06:27:00.044 ERROR SQLite3: statement aborts at 1: cannot start a transaction within a transaction; [BEGIN] (1)
   2026-03-29 06:27:00.045 ERROR ERROR: SQL query "BEGIN" failed: SQL logic error (SQLITE_ERROR)
   2026-03-29 06:27:00.045 WARNING Starting first transaction failed during ARP parsing

2. No "Queries" working

All DB has been Validated, no issue has been found.

FTL.log

Related Issues

• I have searched this repository/Pi-hole forums for existing issues and pull requests that look similar

These common fixes didn't work for my issue

• I have tried removing/destroying my container, and re-creating a new container
• I have tried fresh volume data by backing up and moving/removing the old volume data
• I have tried running the stock docker run example(s) in the readme (removing any customizations I added)
• I have tried a newer or older version of Docker Pi-hole (depending what version the issue started in for me)
• I have tried running without my volume data mounts to eliminate volumes as the cause

[rdwebdesign]

Please post a debug token:

• run pihole -d command.
• when asked to upload the log, answer Y.
• copy only the token and paste here.

[Z-Beeblebrox1978]

debug completed however produced following arror:

• curl failed, contact Pi-hole support for assistance.
• Error message: curl: (6) Could not resolve host: tricorder.pi-hole.net