Hi Richard,
Thank you for your update and the details regarding the changes to the lft and rgt columns in your Joomla database. The values in your lft and rgt columns are currently extremely large and even negative (e.g., lowest: -18,115,359,518, highest: 1,689,024,248,199). Normally, these columns should contain relatively small positive integers. Such abnormal values indicate that the assets tree structure in your Joomla database has become corrupted, possibly due to an import, a malfunctioning extension, or an incorrect database operation.
In this case, changing the column types to BIGINT does not resolve the root cause and may even create further compatibility issues, as Joomla and its extensions are not designed to handle such large values in these fields.
Unfortunately, your site has many third-party extensions involved, it is extremely difficult—if not impossible—to identify the exact source of the problem or to repair the assets table reliably. Joomla does not have a built-in tool to fully reset or restore the assets tree to a clean state. The assets table is critical for Joomla’s permissions and structure, and once corrupted, it can cause persistent and unpredictable issues throughout your site.
The most practical and safest solution is to restore your site and database from a backup taken before the problem occurred. This will revert the assets table and all related data to a working state.
- Please check if you have a recent backup of your site and database from before these issues started.
- If you do, we strongly recommend restoring from that backup as soon as possible.
- After restoring, consider reviewing and possibly reducing the number of third-party extensions to minimize future risks.
Thanks
Dam