An old MODX project often breaks not in just one place, but at the intersection of multiple layers: the core, PHP, pdoTools, miniShop, plugins, templates, server, and custom code.

Therefore, the task of "fixing a MODX website" usually starts with diagnostics rather than random component replacement.

We analyze the causes of errors, restore functionality, and secure the result so that the issue does not return during the next update or migration.

If the breakdown is a consequence of accumulated technical debt, we highlight this separately as an architectural issue rather than masking it with another workaround.