Suggestion #14303

Old Survival Map Not Work Correctly. Please Guide Me For That

I’m trying to use an old Survival Map on the latest Minecraft 26.3 update, but the world is not loading correctly.

I’m getting these errors:

World failed to load
Unable to read world generation settings
This world contains invalid or corrupted data
Datapacks failed to load

The old Survival Map folder contains things like:

level.dat`
session.lock`
dimensions
other files and folders that I’m not sure how to use

Some files or folders may be missing, and I don’t know whether the problem is caused by the map being from an older Minecraft version or by missing/corrupted datapacks.

Please guide me step by step. I want to find the correct Minecraft version for this map and Maybe Version Mismatch 26.7 snapshot latestestest
Please don’t reject or close my request. I’m specifically looking for help recovering this world rather than simply being told that it is incomplete.