The error message A53 is thrown when the HUB encounters a situation where no buffer exists for the product or pack being repackaged by the OBP.
In such cases, the HUB attempts to modify the repack buffer, assuming it had been previously set to a certain value.
However, since no repack buffer was created initially, the HUB is unable to proceed with the repack process, resulting in the A53 error being thrown.