The issue you're encountering is due to the DBMS_QOPATCH package failing to read the patch inventory, likely because of a corrupted or oversized XML inventory file. The key error is:
KUP-04020: found record longer than buffer size supported, which suggests the XML inventory file is too large.

Solution:
Run the following to reload the inventory:

bash
Copy
Edit
cd %ORACLE_HOME%\OPatch
opatch util importInventory
If that doesn't work, delete and regenerate the XML:

bash
Copy
Edit
cd %ORACLE_HOME%\QOpatch
del *.xml
Then rerun the patch application or contact Oracle Support for help with large XML parsing issues.