Server error500

• I am using translation

Nice to meet you, I am always indebted to you.

I would like to inquire about the replacement of the world. I've been using Realms with data packs (command-based creations) for some time. Then, as always, when I downloaded the world for backup and tried to perform a replacement test, the server error No. 500 was displayed and the replacement of the world failed. Since it is a replacement test for backup, new data packs etc. are not included. If the world is broken as it is, it will not be possible to recover it, which is very troublesome. I would like to ask for the investigation of the cause.