This error occurs due to a problem in the massive synchronisation flow based on the Feed API,
eBay is unable to accept the accepted file in relation to the previously initiated task.

This may result from an inconsistency in module operations or a problem on the eBay side.

If you get the error as a result of multiple synchronisations launched at the same time, remember
that this is not supported by the module, it is therefore always necessary to wait for the end of a
massive sync to be able to launch another one.

How to solve:

In case of a blocked synchronisation with this type of error, go to the DEBUG mode of the module,
here you will find an “Clear job history” button that allows you to reset any blocked tasks and start a new task.