[Bug]: Request textDocument/completion failed when typing `with Ada.`

Environment

• OS and Version:suse linux
• IDE Version: vscode 1.93.1
• Ada & SPARK Extension Version: v24.0.6

Bug Summary and Reproducer

Bug Summary:

When typing

with Ada.

in an empty ADV file,
I am not given a choice of packages but the error pops up:

Request testDocuments/completion failed. 
Source: ada & SPARK

Then there is a button Go to output and pressing it unveils:

[Error - 5:08:36 PM] Request textDocument/completion failed.
  Message: Exception: LANGKIT_SUPPORT.ERRORS.PRECONDITION_FAILURE (null node argument)
  Code: -32603 

Steps to reproduce:

• new adb file
• type in as said above

Expected behavior:

I would have expected a popup with the available sub-packages of Ada.

Configuration and Logs

I don't find my `tasks.json`, help, I would like to provide you. 
Log from `Ada: Show extension output from the VS Code command palette`:

2024-09-17 08:55:08.923 [Ada Extension] INFO     Setting log level to: info 
2024-09-17 08:55:08.924 [Ada Extension] INFO     Starting Ada extension 
2024-09-17 08:55:08.925 [Ada Extension] INFO     Using ALS at: /home/ernst/.vscode/extensions/adacore.ada-24.0.6/x64/linux/ada_language_server 
2024-09-17 08:55:08.935 [Ada Extension] INFO     Using ALS at: /home/ernst/.vscode/extensions/adacore.ada-24.0.6/x64/linux/ada_language_server 
2024-09-17 08:55:09.174 [Ada Extension] INFO     Finished starting Ada extension 

log from Ada language server given above

Other VS Code Extensions

No response

Additional context

No response

Reproduce the failure by creating an empty .adb file in VS Code and typing with Ada.; start with the textDocument/completion request and the Ada language server output shown in the report. Done means completion offers Ada subpackages without the LANGKIT_SUPPORT.ERRORS.PRECONDITION_FAILURE error.